CN2483079Y - Liquid/gas or liquid/gas/solid phase agitating reactor having combined agitating blade - Google Patents
Liquid/gas or liquid/gas/solid phase agitating reactor having combined agitating blade Download PDFInfo
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- CN2483079Y CN2483079Y CN 01244677 CN01244677U CN2483079Y CN 2483079 Y CN2483079 Y CN 2483079Y CN 01244677 CN01244677 CN 01244677 CN 01244677 U CN01244677 U CN 01244677U CN 2483079 Y CN2483079 Y CN 2483079Y
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Abstract
The utility model relates to a gas-liquid reaction kettle or a gas-liquid-solid multiphase agitating reaction kettle which has a combined stirring paddle. The stirring paddle combination comprises an upper layer paddle, a lower layer paddle and a rotating shaft. The upper layer paddle is an upper pushing typed inclined concave blade disc turbine stirring paddle and the lower layer paddle is an upper opening typed shaft flow pattern stirring paddle or an inclined blade turbine stirring paddle. The upper layer paddle and the lower layer paddle are connected by the rotating shaft. The utility model uses a multi-layer and multi-port pipe finger typed gas distributor to strengthen the gas dispersion and the utility model uses an off kettle wall non-standard baffle to combined with solid suspending and energy cost reducing.
Description
The utility model relates to a kind of paddle combination gas-liquid or solid heterogeneous stirred autoclave of gas-liquid of having.
The industry stirred tank relates generally to the course of reaction of gas-liquid-solid three-phase system, in order to improve the uniformity of process rate or product, the general even dispersion that all requires to realize gas and solid in continuous phase also will be considered the influence that gas and solids mix liquid phase simultaneously.From the fifties so far, most gas-liquid stirred reactors use the Rushton disc turbine oar of radial flows.Though the SRGT type concave-blade agitator that Sweden Scaba company thereafter proposes belongs to the radial flow oar, but eliminated the air pocket of blade back owing to the special shape of its blade, thereby it is less that its ventilation power is descended, and therefore the design power of motor almost all can be used for Gas-Liquid Dispersion and mass transfer; And its throughput is bigger 3 times than Rushton disc turbine oar before liquid flooding.The existence of bubble has reduced the pump energy-absorbing power of impeller in the stirred tank, thereby has reduced main body circular flow intensity and turbulence intensity, and impeller is to the structurally associated of bubbles dispersion ability and impeller.The outstanding paddle of Gas-Liquid Dispersion suspends to solid may not be best, and the used impeller of blade wheel structure that optimum suspends in the gas-liquid-solid three-phase system and liquid-solid two-phase also has difference.It is generally acknowledged that axial flow oar optimum suspends in the liquid-solid two-phase system, the gas-liquid-solid three-phase system relates to the shearing scattering problem of gas, and axial flow may not be optimum.The data that Oldshue provides show, adopt the A310 axial flow oar of Lightnin company to replace original Rushton radial flow oar in the stirred bioreactor, and the ratio of success and failure is 2: 1, and its reason may the A310 oar be easy to generate liquid flooding and causes; The A315 oar of improved on this basis Lightnin company when replacing Rushton disc turbine oar, also has 5% to 20% performance that obtains to improve or reduced on the contrary reactor, and its reason may be that its shear ability causes inadequately.
The purpose of this utility model is that a kind of stirred autoclave that has the combined type paddle that is used for gas-liquid or the solid heterogeneous system of gas-liquid is provided for the above-mentioned defective that solves prior art.
The purpose of this utility model can realize by following technical measures:
A kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle, its paddle combination includes upper and lower two-layer oar and rotating shaft, the upper strata oar is last pushing-type tilted concaved fan disc turbine paddle, lower floor's oar is upper-turn-type axial flow type paddle or oblique leaf turbine impeller, is connected in series up and down by rotating shaft between upper and lower two-layer oar.
The purpose of this utility model also can further realize by following technical measures:
Aforesaid a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the paddle combination, wherein said upper strata oar is that 4 to 8 blades are symmetrically distributed in around the disk, and the blade of its disk top is than the weak point of disk below, the blade sheet is circular arc type or parabolic type concave surface, concave-blade material in the reactor rotates, and the angle theta of blade sheet upper and lower end parts line and disk is 20 to 90 to spend.
Aforesaid a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle, the employing upper-turn-type axial flow type paddle or the turbine impeller of wherein said lower floor oar, 4 to 8 blades are disposed in equilibrium on it, the angle of each blade and horizontal plane be 20 spend to 60 the degree.
Aforesaid a kind of gas-liquid that has a combined type paddle or the solid heterogeneous stirred autoclave of gas-liquid, the installation site of wherein said lower floor oar are 0.25 to about 0.35 times of reactor diameter on Polycondensation Reactor and Esterification Reactor.
Aforesaid a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle adopts many mouthfuls of tubular type finger-types of multilayer gas distributor.Especially for two-layer many mouthfuls (4-12 mouth) tubular type finger-type gas distributors up and down, its at the middle and upper levels nozzle position be still diameter from 0.25 to 0.35 times of Polycondensation Reactor and Esterification Reactor, lower floor's nozzle position is the still diameter from 0.15 to 0.18 times of Polycondensation Reactor and Esterification Reactor.
Aforesaid a kind of gas-liquid or the solid heterogeneous stirred autoclave of gas-liquid with paddle combination, wherein said from the still span from being provided with baffle plate within 1/100 to 1/60 times of scope of still diameter, barrier width is 1/14 to 1/10 times of still diameter.
Advantage of the present utility model is that lower floor's oar adopts upward pushing-type axial flow oar or turbine oar, compares with the disc turbine oar with the press-down type turbine oar that tradition is used, and has reduced power consumption, has eliminated the flowing instability problem; Under identical power consumption, have the bigger tolerance of holding, and alleviated the problem of subregion up and down between the two-layer oar.The upper strata oar adopts goes up pushing-type tilted concaved fan disc turbine paddle, the blade sheet is circular arc type or parabolic type concave surface, concave-blade material in the reactor rotates, and can eliminate or the low-pressure area and the air pocket that significantly reduce blade sheet dorsal part forms, and therefore has lower power consumption and bigger pump discharge; Power consumption when power consumption is than stuffiness when ventilating in addition descends few, thereby makes the equipped capacitor of motor only need small amount of redundancy.This kind stirring is combined under the identical power consumption, can produce the flow more much bigger than conventional disc turbine, and material in reactor is stirred fully, forms the axial circular flow of full still, reduces incorporation time.This kind stirs and make up cause mobile is axial flow and radial flow combination, and the interior shear rate of reactor distributes more even, and the maximum shear speed ratio is less, under identical unit volume power consumption, can obtain higher mass tranfer coefficient.
Below in conjunction with accompanying drawing the utility model is done detailed explanation.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model upper strata paddle structure schematic diagram.
Fig. 3 is Fig. 2 part section structural representation.
Fig. 4 is the A-A cross-sectional view of Fig. 3.
Fig. 5 is an interior flow field schematic diagram of the present utility model.
Fig. 6 compares P for the ventilation of the utility model paddle combination with the stuffiness power consumption
g/ P
0Curve synoptic diagram.
Shown in Fig. 1～4, the utility model is combined by upper strata oar 4, lower floor's oar 3 and rotating shaft 2.Upper strata oar 4 is last pushing-type tilted concaved fan disc turbine paddle, and its blade 7 is circular arc type or parabolic type concave surface, and the blade of its disk 8 tops has adopted 4 to 8 blades 7 to be symmetrically distributed in around the disk 8 than the weak point of disk 8 belows.The angle of blade sheet upper and lower end parts line and disk 8 is θ, according to material characteristic and the different mixing requirement of practical application system, adopts different slanted angle θ, in the utility model, adopts the angle of about 20 to 90 degree scopes.Impeller matrix face rotates in face of flow direction, makes fluid vertically with to radially discharging.
Lower floor's oar 3 is upper-turn-type axial flow type paddle or turbine impeller, and lower floor's oar 3 has 4 to 8 blades, and the angle of each blade and horizontal plane is 20 to spend to 60 degree, and these blades are configuration mutually evenly, and the diameter of its blade and the established angle of blade can correspondingly be adjusted.The installation site of the axial flow paddle of lower floor's oar 3 be from reactor at 1 the end 0.25 to about 0.35 times of reactor 1 diameter range.In the normal rotation of rotating shaft 2, each blade by lower floor's oar 3 flows the material in the reactor 1 from bottom to top.4,3 on upper and lower two-layer oar is connected in series up and down by rotating shaft 2.
For cooperating solid to suspend and reducing power consumption, adopt from the non-standard baffle plate 5 of still wall, within 1/100 to the 1/60 times of scope that is about the still diameter, be provided with 2～6 baffle plates 5 from the still span, baffle plate 5 width are about within 1/14 to 1/10 times the scope of still diameter.Every baffle plate 5 has the cross section of rectangle.
For strengthening the gas dispersion effect, adopt many mouthfuls of (4-12 mouth) tubular type finger-types of multilayer gas distributor.Be preferably double-deck many mouthfuls of (4-12 mouth) tubular type finger-type gas distributors 6, the upper strata mouth of pipe and lower floor's oar are positioned at same horizontal plane, and lower floor's mouth of pipe is positioned in the middle part of lower floor's oar 3 and reactor 1 bottom, and its position is a still diameter at the bottom of 0.15 to 0.18 times of Polycondensation Reactor and Esterification Reactor.
Referring to Fig. 5, when not ventilating, adopt LDV (LDV) that DCO has been carried out in the flow field of the utility model paddle combination, obtained the zero dimension flow field of reactor half-plane.Abscissa is the reactor radius R among Fig. 5, and ordinate is reactor height Z, and vector is represented non-dimensional velocity among the figure, and it is the two-dimentional sum velocity in the R-Z plane.Formed the systemic circulation stream of a covering reactor half-plane 3/4 as can be seen from Figure by lower floor's oar 3 and 4 synergy of upper strata oar, center of vorticity is in two-layer oar upper middle and near the position of reactor wall.Also form a partial circulating stream by the radially discharge currents of upper strata oar 4 above upper strata oar 4, center of vorticity is above upper strata oar 4 and near the position of reactor wall 1.Can find out full still flow velocity size and be evenly distributed, no dead band, very favourable to mixing and mass transfer.
And can understanding more clearly be arranged to advantage of the present utility model and feature by introduction to following application examples.In diameter D was 384 millimeters reactor, Experimental Flowing Object adopted water, the blowing air amount by 0 to 35m
3/ hr, 100 rev/mins to 350 rev/mins of experiment rotating speeds.Adopt the combination of the utility model paddle, oar 4 diameters in upper strata are 190 millimeters, and lower floor's oar 3 diameters are 190 millimeters.And contrast with the combination of other paddle.
Result of the test: with paddle combination of the present utility model, with other paddle combination, as: (lower floor is a disc turbine, the upper strata is for pressing down oblique leaf turbine), (lower floor pushes away oblique leaf turbine on being, the upper strata is a disc turbine), (lower floor and upper strata are and push away oblique leaf turbine), (lower floor and upper strata are and press down oblique leaf turbine) etc. compare.Referring to Fig. 6, lower floor pushes away oblique leaf turbine on being, the upper strata is the paddle combination of disc turbine, ventilation back power descends very big, during ventilation when power consumption and stuffiness the ratio of power consumption be about 0.4, during the ventilation of the utility model paddle combination when power consumption and stuffiness the ratio of power consumption then bigger, be about 0.6.Under the concurrent present same units volumetric work condition, the gas holdup of the utility model paddle combination and mass transfer rate are all big than other paddle combination, and whole system is stable during ventilation, and it is large-minded that critical before the liquid flooding held, and bubble is evenly distributed in the flow field, and air pocket is few.
Claims (8)
1. the gas-liquid or the solid heterogeneous stirred autoclave of gas-liquid that have the combined type paddle, it is characterized in that it is last pushing-type tilted concaved fan disc turbine paddle that the combination of its paddle includes upper and lower two-layer oar, rotating shaft, upper strata oar, lower floor's oar is upper-turn-type axial flow paddle or oblique leaf turbine impeller, is connected in series up and down by rotating shaft between upper and lower two-layer oar.
2. a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle according to claim 1, it is characterized in that described upper strata oar is 4 to 8 blades, be symmetrically distributed in around the disk, and the blade of its disk top is than the weak point of disk below, the blade sheet is circular arc type or parabolic type concave surface, concave-blade material in the reactor rotates, and the angle theta of blade sheet upper and lower end parts line and disk is 20 to 90 to spend.
3. a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle according to claim 1, it is characterized in that described lower floor oar adopts upper-turn-type axial flow type paddle or turbine impeller, 4 to 8 blades are disposed in equilibrium on it, the angle of each blade and horizontal plane be 20 spend to 60 the degree.
4. a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that the combined type paddle is arranged that have according to claim 1 is characterized in that the installation site of described lower floor oar is 0.25 to 0.35 times of reactor diameter on Polycondensation Reactor and Esterification Reactor.
5. a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle according to claim 1 is characterized in that being provided with many mouthfuls of tubular type finger-types of multilayer gas distributor at the port of gas feed.
6. a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle according to claim 5 is characterized in that the mouth number of many mouthfuls of tubular type finger-types of described multilayer gas distributor is 4 to 12 mouthfuls.
7. a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle according to claim 5, it is characterized in that many mouthfuls of tubular type finger-types of described multilayer gas distributor is two-layer many mouthfuls of tubular type finger-type gas distributors up and down, the position, upper strata is the still diameter from 0.25 to 0.35 times of Polycondensation Reactor and Esterification Reactor, and the lower floor position is the still diameter from 0.15 to 0.18 times of Polycondensation Reactor and Esterification Reactor.
8. a kind of gas-liquid or solid heterogeneous stirred autoclave of gas-liquid that has the combined type paddle according to claim 1, it is characterized in that from the still span from be about the still diameter 1/100 to doubly being provided with baffle plate within 1/60 scope, barrier width is 1/14 to 1/10 times of still diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244677 CN2483079Y (en) | 2001-07-06 | 2001-07-06 | Liquid/gas or liquid/gas/solid phase agitating reactor having combined agitating blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244677 CN2483079Y (en) | 2001-07-06 | 2001-07-06 | Liquid/gas or liquid/gas/solid phase agitating reactor having combined agitating blade |
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| CN2483079Y true CN2483079Y (en) | 2002-03-27 |
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| CN 01244677 Expired - Lifetime CN2483079Y (en) | 2001-07-06 | 2001-07-06 | Liquid/gas or liquid/gas/solid phase agitating reactor having combined agitating blade |
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| CN102350272A (en) * | 2011-06-28 | 2012-02-15 | 山东阳谷华泰化工股份有限公司 | Apparatus for synthesizing promoter NS (N-tert-butyl-benzothiazole-2-sulfenamide) through oxidation by oxygen and application thereof |
| CN102671607A (en) * | 2012-05-21 | 2012-09-19 | 苏州市金翔钛设备有限公司 | Wear-resistant reaction kettle |
| CN102776119A (en) * | 2012-07-27 | 2012-11-14 | 南通凯赛生化工程设备有限公司 | Stirring bracket |
| CN101384347B (en) * | 2006-02-17 | 2012-12-05 | 奥图泰有限公司 | Method and mixer apparatus for mixing gas into slurry in a closed reactor |
| CN101596437B (en) * | 2008-06-03 | 2013-07-10 | 中国科学院过程工程研究所 | Fluid distributor of polyphase reactor suitable for toluene method caprolactam technology |
| CN103386265A (en) * | 2012-05-11 | 2013-11-13 | 四川汇利实业有限公司 | Multilayer stirring system |
| CN104174322A (en) * | 2014-08-21 | 2014-12-03 | 四川富临集团成都机床有限责任公司 | Stirring method for preparing cooling liquid of machine tool |
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| CN116020358A (en) * | 2021-10-27 | 2023-04-28 | 中国石油化工股份有限公司 | Device for hydrogenating unsaturated rubber, application of device and hydrogenation method of unsaturated rubber |
-
2001
- 2001-07-06 CN CN 01244677 patent/CN2483079Y/en not_active Expired - Lifetime
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| CN101596437B (en) * | 2008-06-03 | 2013-07-10 | 中国科学院过程工程研究所 | Fluid distributor of polyphase reactor suitable for toluene method caprolactam technology |
| CN102350272A (en) * | 2011-06-28 | 2012-02-15 | 山东阳谷华泰化工股份有限公司 | Apparatus for synthesizing promoter NS (N-tert-butyl-benzothiazole-2-sulfenamide) through oxidation by oxygen and application thereof |
| CN102350272B (en) * | 2011-06-28 | 2013-08-14 | 山东阳谷华泰化工股份有限公司 | Apparatus for synthesizing promoter NS (N-tert-butyl-benzothiazole-2-sulfenamide) through oxidation by oxygen and application thereof |
| CN103386265A (en) * | 2012-05-11 | 2013-11-13 | 四川汇利实业有限公司 | Multilayer stirring system |
| CN102671607A (en) * | 2012-05-21 | 2012-09-19 | 苏州市金翔钛设备有限公司 | Wear-resistant reaction kettle |
| CN102776119A (en) * | 2012-07-27 | 2012-11-14 | 南通凯赛生化工程设备有限公司 | Stirring bracket |
| CN102776119B (en) * | 2012-07-27 | 2014-03-12 | 南通凯赛生化工程设备有限公司 | Stirring bracket |
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| CN108246230A (en) * | 2018-04-01 | 2018-07-06 | 中鸿纳米纤维技术丹阳有限公司 | A kind of silica aerogel production reaction kettle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110706 Granted publication date: 20020327 |