CN202751836U - Turnplate extraction tower - Google Patents
Turnplate extraction tower Download PDFInfo
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- CN202751836U CN202751836U CN 201220417415 CN201220417415U CN202751836U CN 202751836 U CN202751836 U CN 202751836U CN 201220417415 CN201220417415 CN 201220417415 CN 201220417415 U CN201220417415 U CN 201220417415U CN 202751836 U CN202751836 U CN 202751836U
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- turnplate
- tower body
- rotating shaft
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Abstract
The utility model relates to a turnplate extraction tower which comprises a tower body, a rotary shaft, turnplates, fixing rings and an actuating unit. The rotary shaft is placed inside the tower body and is connected with the actuating unit in transmission mode. The turnplates are arranged on the rotary shaft in sleeved mode and are distributed in disjunction mode along the axial direction of the rotary shaft. The fixing rings are placed between every two adjacent up-and-down turnplates, the external rim of each fixing ring is connected with the inner wall of the tower body, and at least two turbine blades are placed on the external rim of each turnplate. Due to the fact that the fixing rings are placed between every two adjacent up-and-down turnplates, and the external rim of each turnplate is connected with the turbine blades, liquid flowing to the direction of a tower wall is enabled to reach the tower wall under the centrifugal force of the turnplates, the radial momentum transfer under a turbulence state produced by eddies on the edge of the turnplates is guaranteed, and mass transfer between two adjacent turnplate towers is favored. Due to the fact that the inner portion of the tower body is separated into a plurality of sections by the fixing rings, the eddies produced by the rotations of the turnplates and the turbine blades are limited in each section, so that axial back mixing is reduced, and the mass transfer efficiency of the turnplate extraction tower is improved.
Description
Technical field
The technical program relates to a kind of chemical separating equipment technical field, is specifically related to a kind of turntable extracting tower.
Background technology
Large-scale turntable extracting tower is a kind of important chemical industry mass transfer apparatus, and it has a wide range of applications in fields such as chemical industry, oil and environmental protection.Turntable extracting tower has simple in structure, and treating capacity is large, invests the advantages such as little.Therefore, since it comes out, in medical, meticulous, petro chemical industry, be widely used always.The principal element that affects the turntable extracting tower mass transfer is that decentralized photo retains mark and axial backmixing.Turntable extracting tower is when carrying out industry and amplify, because the reduction of the mass transfer force that the tower height that axial backmixing makes 75-90% brings for the compensating axial back-mixing.Axial backmixing in extraction column in the continuous phase is considered to have by in following several factors one or several and causes: the eddy diffusivity that 1) causes owing to fluid and fluid agitation; 2) radial velocity distributes; What 3) equate continuously in the dispersed phase drop wake flow carries secretly; 4) the mobile eddy current that causes of dispersed phase drop.But it is also very insufficient that factor, source, influence degree and the influence area of specifically causing back-mixing are studied.
Fluid Mechanics Computation (CFD) is one and develops rapidly front subject that its application in space flight and auto industry has obtained huge success.Utilization at chemical field is also developing rapidly.The people such as Bart then conduct in-depth research single-phase in the turntable extracting tower and two-phase fluid flowing law.They point out that fully radial flow momentum transmission is the adequate condition that guarantees effective utilization of equipment volume in the mass transport process.If the geometry of equipment can not guarantee this Momentum Transfer radially, the rotating speed that increases rotating disc column also can not reach sufficient mass transfer and separation requirement, particularly to the rotating disc column of large tower diameter.Under the laminar boundary layer mobility status, the radial momentum transmission of rotating disk realizes by outwards discharging free liquid jet from disk edge.According to boundary layer theory, under laminar flow conditions, be with X at the Peak Flow Rate on the Jet Axis
-1/3Speed reduce (X is for setting up axial distance).Next with X at turbulence state
-1/2Decrease of speed.If it is little that this speed is compared with the liquid continuous phase flow velocity, will not reach the tower wall by rotating disk centrifugal force to tower wall direction flowing liquid.Radial momentum transmission under the turbulence state is to be produced by the eddy current on the disk edge.In large tower diameter extraction tower, this laminar flow and turbulent mechanism will lose its validity, and the effective tangential motion of fluid will be broken.In this case, back-mixing will produce, and the volume that effectively utilizes of tower will reduce.
Summary of the invention
The purpose of the technical program is to provide a kind of inter-stage back-mixing that can eliminate in the rotating disc column, improves the turntable extracting tower of mass-transfer efficiency, and concrete technical scheme is as follows:
A kind of turntable extracting tower comprises tower body, rotating shaft, rotating disk, retainer ring and actuating unit; Described actuating unit is outside tower body, and rotating shaft is located in the tower body and with actuating unit and is in transmission connection the axial vertical ground of described rotating shaft; Described rotating disk has a plurality of, and each rotating disk axially is connected in turn in the rotating shaft along rotating shaft, and spaced apart; Be provided with retainer ring between per two neighbouring rotating disks, the outward flange of retainer ring is connected with the inwall of tower body; The outward flange of described rotating disk is connected with at least two turbo blades, and each turbo blade becomes axial symmetry about rotating shaft.
Described turbo blade is preferably 3.The inward flange of described retainer ring is connected with the baffle plate perpendicular to retainer ring.Described actuating unit is variable speed electric motors, particularly.
The inward flange of described retainer ring is provided with the baffle plate perpendicular to retainer ring, consists of virtual settling section.Whole extraction section is divided into a plurality of mixed zones and settling section by the baffle plate of rotating disk and turbo blade and retainer ring.It has the original peptizaiton of traditional turntable extracting tower, and settling section is separately arranged again simultaneously, can repeatedly condense so and disperse, and to have reduced axial mixing, has improved extraction efficiency.
The operation principle of the technical program is: drive the rotating shaft rotation by actuating unit, driven rotating disk and the turbo blade rotation that is installed in the rotating shaft by rotating shaft, thereby continuous phase is namely gently rotated with heavy phase with decentralized photo, high velocity gradient and shear stress have been produced in the liquid stream, shear stress makes continuous phase produce strong vortex on the one hand, make again on the other hand decentralized photo be broken into many small drops, thereby the mass tranfer coefficient that has increased decentralized photo is contact interface.
The technical program is provided with retainer ring between per two neighbouring rotating disks, and at the outward flange connecting turbine vane of rotating disk, so that can arrive the tower wall by rotating disk centrifugal force to tower wall direction flowing liquid, radial momentum transmission under the turbulence state that has guaranteed to be produced by the eddy current on the disk edge, eliminate the inter-stage back-mixing in the rotating disc column, be conducive in the rotating disc column two alternate mass transfers.Because the ring that is fixed is separated into each interval, rotating disk and turbo blade rotate and the vortex that causes can be limited in each interval substantially in the tower body, thereby reduce axial backmixing, have improved the mass-transfer efficiency of turntable extracting tower.
Description of drawings
Fig. 1 is the structural representation of the technical program;
Fig. 2 is the partial enlarged drawing of the A section among Fig. 1.
The specific embodiment
Further specify the technical program below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, a kind of turntable extracting tower comprises tower body, rotating shaft, rotating disk, retainer ring and actuating unit; Described actuating unit is outside tower body, and rotating shaft is located in the tower body and with actuating unit and is in transmission connection the axial vertical ground of described rotating shaft; Described rotating disk has a plurality of, and each rotating disk axially is connected in turn in the rotating shaft along rotating shaft, and spaced apart; Be provided with retainer ring between per two neighbouring rotating disks, the outward flange of retainer ring is connected with the inwall of tower body; The outward flange of described rotating disk is connected with at least two turbo blades, and each turbo blade becomes axial symmetry about rotating shaft.In this example, described turbo blade is 3.The inward flange of described retainer ring is connected with the baffle plate perpendicular to retainer ring.Described actuating unit is variable speed electric motors, particularly.
The operation principle of the technical program is: drive the rotating shaft rotation by actuating unit, driven rotating disk and the turbo blade rotation that is installed in the rotating shaft by rotating shaft, thereby continuous phase is namely gently rotated with heavy phase with decentralized photo, high velocity gradient and shear stress have been produced in the liquid stream, shear stress makes continuous phase produce strong vortex on the one hand, make again on the other hand decentralized photo be broken into many small drops, thereby the mass tranfer coefficient that has increased decentralized photo is contact interface.
The technical program is provided with retainer ring between per two neighbouring rotating disks, and at the outward flange connecting turbine vane of rotating disk, so that can arrive the tower wall by rotating disk centrifugal force to tower wall direction flowing liquid, radial momentum transmission under the turbulence state that has guaranteed to be produced by the eddy current on the disk edge is conducive in the rotating disc column two alternate mass transfers.Because the ring that is fixed is separated into each interval, rotating disk and turbo blade rotate and the vortex that causes can be limited in each interval substantially in the tower body, thereby reduce axial backmixing.
Claims (4)
1. a turntable extracting tower comprises tower body, rotating shaft, rotating disk, retainer ring and actuating unit;
Described actuating unit is outside tower body, and rotating shaft is located in the tower body and with actuating unit and is in transmission connection the axial vertical ground of described rotating shaft;
Described rotating disk has a plurality of, and each rotating disk axially is connected in turn in the rotating shaft along rotating shaft, and spaced apart;
Be provided with retainer ring between per two neighbouring rotating disks, the outward flange of retainer ring is connected with the inwall of tower body, it is characterized in that the outward flange of described rotating disk is connected with at least two turbo blades, and each turbo blade becomes axial symmetry about rotating shaft.
2. turntable extracting tower according to claim 1 is characterized in that described turbo blade has 3.
3. turntable extracting tower according to claim 1 and 2, the inward flange that it is characterized in that described retainer ring is connected with the baffle plate perpendicular to retainer ring.
4. turntable extracting tower according to claim 1 is characterized in that described actuating unit is variable speed electric motors, particularly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220417415 CN202751836U (en) | 2012-08-21 | 2012-08-21 | Turnplate extraction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220417415 CN202751836U (en) | 2012-08-21 | 2012-08-21 | Turnplate extraction tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202751836U true CN202751836U (en) | 2013-02-27 |
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ID=47731033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220417415 Expired - Fee Related CN202751836U (en) | 2012-08-21 | 2012-08-21 | Turnplate extraction tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202751836U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801108A (en) * | 2013-12-09 | 2014-05-21 | 杭州三隆新材料有限公司 | Special extraction device for realizing separation of catalyst in production of polytetramethylene ether glycol (PTMG) |
| CN105148555A (en) * | 2015-08-21 | 2015-12-16 | 安徽苏启化工有限公司 | Two-stage rotating disc column |
| CN111573767A (en) * | 2020-05-29 | 2020-08-25 | 中国矿业大学(北京) | Rotary disc extraction tower |
-
2012
- 2012-08-21 CN CN 201220417415 patent/CN202751836U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801108A (en) * | 2013-12-09 | 2014-05-21 | 杭州三隆新材料有限公司 | Special extraction device for realizing separation of catalyst in production of polytetramethylene ether glycol (PTMG) |
| CN105148555A (en) * | 2015-08-21 | 2015-12-16 | 安徽苏启化工有限公司 | Two-stage rotating disc column |
| CN111573767A (en) * | 2020-05-29 | 2020-08-25 | 中国矿业大学(北京) | Rotary disc extraction tower |
| CN111573767B (en) * | 2020-05-29 | 2021-04-23 | 中国矿业大学(北京) | A carousel extraction tower for containing phenol sewage treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20140821 |
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| EXPY | Termination of patent right or utility model |