CN2649170Y - Efficient self-absorption gas-liquid stirring device - Google Patents
Efficient self-absorption gas-liquid stirring device Download PDFInfo
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- CN2649170Y CN2649170Y CN 200320109378 CN200320109378U CN2649170Y CN 2649170 Y CN2649170 Y CN 2649170Y CN 200320109378 CN200320109378 CN 200320109378 CN 200320109378 U CN200320109378 U CN 200320109378U CN 2649170 Y CN2649170 Y CN 2649170Y
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Abstract
The present utility model discloses an efficient self-absorption-type gas-liquid agitation device, including a mixer drive, a coupling, a hollow stirring shaft, a self-absorption-type agitator, an auxiliary agitator in turn. The self-absorption-type agitator is of hollow turbine type or hollow windmill type. An inferior liquid inlet is opened on the lower side of the self-absorption-type agitator, or an upper liquid inlet is opened on the upper side of the self-absorption-type agitator in hollow turbine type. The present utility model has good gas-liquid contact, small bubble diameter and uniform distribution, fast interface updating rate, improved mass transfer efficiency, more complete chemical reaction, thereby the yield of products is significantly enhanced. Nano-calcium carbonate with uniform size distribution and controllable particle size can be acquired from CO2 if an efficient self-absorption-type agitator is applied. The reaction time was shortened by more than 50%, and the utilization ratio of CO2 is improved by more than 70%. Inspiratory law is fully mastered and controlled so that the coordination among the inspiratory capacity, agitation speed and agitation consumption becomes easy, reaction control is very strict, the product quality is good and by-product is reduced.
Description
Technical field
The utility model relates to a kind of high-efficiency self-suction gas-liquid agitating device, be particularly useful for gas one liquid, gas one liquid one solid heterogeneous reaction process in oil, chemical industry, medicine and the bioengineering industry thereof, for example, liquid phase catalytic hydrogenation, oxidation, amination, fluoridize, alkylation etc.
Technical background
Gas-Liquid Dispersion and reaction problem often run in oil, biology, medication chemistry, for example catalytic hydrogenation process, catalytic oxidation process, biological fermentation process etc.But owing to relate to processes such as gas dispersion, gas-liquid mass transferring and solid suspension, more complicated, theoretical research work is system not very.And because each researcher's research object, geometry, operation factors and research range etc. is different, the gained conclusion is not quite similar, some or even contradiction, become the difficult point in stirring field.In recent years, along with to unit process researchs such as gas dispersion, solid suspension deeply and polymerization reaction engineering and Biochemical Engineering etc. flourish, in conjunction with some concrete technical process, more and more to the research of gas-liquid, gas-liquid-solid system dispersed with stirring.
Because the incompatibility of gas-liquid, unreacted gas accumulates in the upper space in the reactor in the gas-liquid reactor, has a strong impact on reaction rate and efficient.Self-Priming Gas-Liquid Reactor be a kind of need not be extra gas conveying machinery and the sucting reaction device upper space gas reaction unit that carries out gas-liquid contact voluntarily, hollow turbine stirrer by particular design constantly sucks extraneous gas when carrying out the feed liquid mixing, reach the purpose of Gas-Liquid Dispersion, reaction.
Document (He Zhimin, Li Keqiu, " design of Self-Priming Gas-Liquid Reactor and application ", Chinese Journal of Pharmaceuticals, 2000,31 (1): 34-36) introduced principle, structure, the design of Self-Priming Gas-Liquid Reactor and successfully be applied to industry such as chemical pharmacy, dyestuff, food grease hydrogenation, amination, fluoridize, the example of production process such as alkylation.Adopted the hollow turbine stirrer of individual layer, agitator outer diameter D i/ still inside diameter D T=1/3, turbine height h=Di/4, turbine and reactor bottom distance y=Di, air entry diameter of phi=3Di/8.Compare with conventional stirred reactor, obviously shortened the gas liquid reaction time.
Chinese patent (ZL87211458U) provides a kind of self-priming circulation deep layer distributing hydrogenation reactor, is made of impeller and negative pressure pipe.Hydrogen utilization ratio height when being used for hydrogenation, catalyst consumption are few.The self-priming gas mixing that Chinese patent (ZL92231345.8) proposes is mixed device and is equipped with on cell body by the flow straightener that has guide vane and circulation port, the impeller that has big and small blade and air inlet swing pipe, is used for large-tonnage air oxidation reaction process.The existence of negative pressure pipe makes structure complicated.
Chinese patent (ZL97226395.0) provides a kind of turbine oar self-absorbing type stirrer, the hollow rotating shaft that comprises the joint of being with suction hole, links with joint, is vertically fixed on hollow rotating shaft lower end and the recurrent canal that is communicated with it, the recurrent canal outer wall and is fixed with the left and right sides blade parallel with hollow rotating shaft.Requirement of strength and power of agitator simple in structure, in light weight, as can to reduce hollow rotating shaft are fit to the high solids content system, significantly improve gas liquid contacting efficiency.Chinese patent (ZL99232050.X) provides a kind of gas liquid reaction to quicken enhancing device, it is characterized in that device comprise the gas liquid reaction still, be loaded in the reactor link with motor and its mountain having on the hollow shaft of impeller, the hollow shaft perisporium some apertures is arranged, can improve organic synthesis gas-liquid two-phase goods and materials carry out chemical reaction in reactor efficient.Directly open the intensity that suction hole certainly will influence shaft on the shaft.
The Self-Priming Gas-Liquid Reactor that analysis-by-synthesis is above-mentioned, there is following drawback in existing technology:
1, because the density of gas much smaller than liquid, depends on the centrifugal force of gas, for the soakage speed of agitator that increases gas is generally very high, the liquid phase power of agitator is bigger than normal.Therefore, existing technology is difficult to solve the coordination problem of inspiratory capacity and speed of agitator.
2, suction hole is directly opened on hollow shaft, has had a strong impact on the intensity of shaft; Patent (ZL87211458U ZL92231345.8) has adopted the combination of solid shaft and negative pressure pipe, but complex structure.
3, the supporting construction of the no end of shaft, stable inadequately when stirring running, and very easily damage, also bring difficulty for the maximization design of reactor.
Summary of the invention
The purpose of this utility model provides a kind of high-efficiency self-suction gas-liquid agitating device.
It has successively mixer drive, shaft coupling, hollow shaft, self-absorbing type stirrer, auxiliary agitator,, self-absorbing type stirrer is a hollow Scroll-type or hollow windmill-shaped, the downside of self-absorbing type stirrer has down inlet opening, and perhaps hollow Scroll-type self-absorbing type stirrer upside has inlet opening.
Advantage of the present utility model:
1) compare with gas outer circulation technology, the utility model has been saved gas transportation facilities and annex thereof, has correspondingly saved the maintenance management of the investment and the energy and equipment;
2) adopt the course of reaction of the high-efficiency self-suction gas-liquid agitating device that the utility model proposes, all shortening the reaction time in varying degrees.Compare with non-self-priming stirring gas-liquid reactor, the operating time of high-efficiency self-suction reactor shortens 1/3 to 1/2, thereby improves the space-time production capacity of reactor greatly, and energy consumption also obviously reduces;
3) adopt the high-efficiency self-suction gas-liquid agitating device that the utility model proposes, the gas-liquid contact is good, and bubble diameter is little and be evenly distributed, and the interface renewal rate is fast, and mass-transfer efficiency improves, and chemical reaction is more complete, thereby the yield of product significantly improves.As adopt reactor that high-efficiency self-suction stirs by CO
2Prepare nano-calcium carbonate, can obtain the nano-calcium carbonate of even particle size distribution and controllable granularity, shorten the reaction time more than 50%, improve CO
2Utilization rate is more than 70%;
4) fully grasp the air-breathing rule of control, the coordination of inspiratory capacity and speed of agitator, stirring energy consumption is become simply, the reaction control ratio is strict, good product quality, and accessory substance reduces.
Description of drawings
Fig. 1 adopts high efficient gas and liquid of the present utility model, gas-liquid gas-solids reactors structural representation;
Fig. 2 is principle, the structure chart of high-efficiency self-suction gas-liquid agitator of the present utility model, band pore shaft coupling;
Fig. 3 is the sucting hole structure schematic diagram of band reinforcing ring on the hollow shaft;
Fig. 4 is the not isomorphism type schematic diagram of self-absorbing type stirrer of the present utility model.
The specific embodiment
Critical component of the present utility model is hollow turbine stirrer, impel liquid to flow fierce turbulence when in container, rotating, agitator paddle kinetic energy is on every side increased and the potential energy minimizing, thereby make the fluid pressure of kinetic energy around the impeller be lower than the fluid pressure of the low kinetic energy in impeller center, form negative pressure state, suck the gas of gas-liquid reactor upper space by the air admission hole on the hollow shaft that connects with hollow turbine and axle top thereof, outer openings by hollow turbine is constantly discharged, near with maximum the end of turbo blade circumferential speed is pulverized by liquid stream, disperse to become tiny bubble, and fully mix with feed liquid, Radial Flow is poured into liquid level through the baffle plate baffling again near wall.Like this, gas constantly is sucked into the deep layer liquid phase in reactor, and is stirred dispersion, goes round and begins again, and forms uniform gas-liquid mixed system.Mass-transfer progress is strengthened in the contact of realization high efficient gas and liquid, shortens the gas liquid reaction time.The size of this self-absorbing type stirrer gettering ability depends on multiple factors such as structural shape, mounting means, speed of agitator and feed liquid character., speed of agitator bigger than as agitator paddle and reactor diameter is higher, liquid-column height is lower, feed liquid proportion proportion bigger, gas is littler, and then inspiratory capacity is bigger, suction height is higher.
The upside of the hollow turbine of high-efficiency self-suction is following inlet opening (Fig. 2) or/and downside has inlet opening.Suck liquid when hollow turbine stirrer rotates, the liquid under action of centrifugal force in the hollow turbine is ejected turbine.When liquid sprayed, hollow turbine center formed strong negative pressure on the one hand, and gettering ability increases greatly; The injected liquid entrainment of gas on the other hand sprays and enters in the feed liquid, has strengthened the Gas-Liquid Dispersion performance.Further, therefore, the size of inlet opening can be regulated, and is easy to solve the inspiratory capacity that exists in the prior art and the coordination problem of speed of agitator.
High-efficiency self-suction gas-liquid agitating device: the air admission hole of reactor upper space gas is arranged in the shaft joint (Fig. 2), has solved well owing to hollow shaft owing to offer the intensity decline problem that air admission hole causes.When in the shaft coupling during inconvenient perforate, the utility model proposes to adopt and shown in Figure 3 the structure of reinforcing ring is set at hollow shaft suction hole position of opening, reinforcement is carried out in the perforate of hollow shaft.
The combination of self-priming turbine stirrer and non-self-priming auxiliary agitator working in coordination with down of baffle plate, is further strengthened the solid-liquid suspension of the granule materials such as full groove mixing, Gas-Liquid Dispersion and catalyst of reactant liquor, improves catalyst efficiency.The top of self-priming turbine stirrer sets up non-self-priming auxiliary agitator can strengthen the feed liquid mixing, and the bottom of self-priming turbine stirrer sets up non-self-priming auxiliary agitator can strengthen solid-liquid suspension.Non-self-priming auxiliary agitator preferably adopts the axial flow type agitator.
The bottom of shaft sets up the end to support, and the stability when the raising agitator runs up also is beneficial to the maximization of reactor simultaneously.
High-efficiency self-suction gas-liquid agitating device with container, combine as the heat exchange jacket of heat exchanger components and/or interior heat exchange coil etc., can constitute gas-liquid, gas-liquid gas-solids reactors (Fig. 1) efficiently.The chuck heat exchanger components preferably adopts helical baffle chuck or half-pipe jacket.General container is pressure-vessel, and oxidation reaction and other occasions for sewage disposal also can be uncovered rectangular channel.
Gas-liquid, gas-liquid at Fig. 1 are consolidated in the stirred reactor, and withstand voltage airproof container is made up of vertical cylinder 6, last low head; Stir drive part and comprise necessary assemblies such as motor 1, deceleration device 2, sealing; Chuck 10, interior heat exchange coil 8 optionally can be set as heat exchanger components.The critical component of the high-efficiency self-suction gas-liquid reactor that the utility model proposes is made up of shaft coupling 5, hollow shaft 7, auxiliary agitator 12, end support 13 and the baffle plate 11 of the self-priming effect agitator 9 of hollow turbine, band air entry.In addition, also set up the safety device that comprises safety valve, rupture disk at certain operating pressure.
Specifically described the flow condition of gas, liquid when high-efficiency self-suction stirs running among Fig. 2.The gas on liquid level top sucks, is scattered in the liquid phase through hollow shaft 7, by hollow turbine self-absorbing type stirrer 9 from the air inlet of following shaft coupling 5 in the reactor; Liquid is gone up or inlet suction down from hollow turbine, spurts into liquid phase under action of centrifugal force, strengthens gas dispersion and liquid phase and mixes.
When in the shaft coupling during inconvenient perforate, can adopt shown in Figure 3 the sucting hole structure of reinforcing ring to be set at hollow shaft, reinforcement is carried out in the perforate of hollow shaft.
The configuration of high-efficiency self-suction stirrer can adopt Scroll-type shown in Figure 4 and windmill-shaped, and the number of blade is 3～12, and blade shape can be that prismatic blade also can be a swept-back.
Embodiment 1:
Dischargeable capacity is 0.5m
3Para-nitrotoluene catalytic hydrogenation reaction device, for improving the propelled at high velocity formula agitator that reaction rate has adopted 700rpm, power of motor 7.5kw, in 5 hours reaction time, the stirring power consumption of product per ton surpasses 75kwhr.Adopt 3m
3Self-priming stirring gas-liquid reactor, power of motor 15kw, in 8 hours reaction time, the stirring power consumption of product per ton is reduced to 30kwhr, and the low content that boils such as aniline drops to 0.2% by original 0.4% in the product.
Embodiment 2:
Volume 3m
3The reaction unit of paranitrobenzoic acid catalytic hydrogenation, adopt the A315 agitator, the reaction time is 16 hours, need add catalyst in the course of reaction, it is higher that reaction finishes back hydrogen excess pressure ratio, causes the waste of hydrogen.Use self-priming stirring structure shown in Figure 1 instead, the reaction time shortened in 5 hours; Need not to add catalyst in the course of reaction, the catalyst consumption amount obviously descends; Reaction finishes to reduce 0.3MPa before back hydrogen excess pressure ratio is transformed, and hydrogen utilization ratio also is improved.
Claims (6)
1. high-efficiency self-suction gas-liquid agitating device, it is characterized in that it has mixer drive, shaft coupling (4), hollow shaft (7), self-absorbing type stirrer (9), auxiliary agitator (12) successively, self-absorbing type stirrer is a hollow Scroll-type or hollow windmill-shaped, the downside of self-absorbing type stirrer has down inlet opening (17), and perhaps the self-absorbing type stirrer upside has inlet opening (14).
2. a kind of high-efficiency self-suction stirrer according to claim 1 is characterized in that the intra vane of said self-absorbing type stirrer is shaped as prismatic blade or swept-back, is preferably swept-back; The number of blade is 3～12, is preferably 6～8.
3. a kind of high-efficiency self-suction gas-liquid agitating device according to claim 1, it is characterized in that: said auxiliary agitator is multilayer radial type or axial flow type, the preferred axes flow pattern; The quantity of auxiliary agitator is one deck and the below that is positioned at self-absorbing type stirrer at least, and perhaps self-absorbing type stirrer respectively is provided with one deck up and down.
4. a kind of high-efficiency self-suction gas-liquid agitating device according to claim 1, it is characterized in that: said shaft coupling (4) is provided with the air admission hole of reactor upper space gas.
5. a kind of high-efficiency self-suction gas-liquid agitating device according to claim 1, it is characterized in that: said hollow shaft is provided with suction hole, and is provided with reinforcing ring.
6. a kind of high-efficiency self-suction gas-liquid agitating device according to claim 1 is characterized in that the bottom of said hollow shaft is provided with end support (13), and the end is supported and fixed on reactor bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109378 CN2649170Y (en) | 2003-10-28 | 2003-10-28 | Efficient self-absorption gas-liquid stirring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109378 CN2649170Y (en) | 2003-10-28 | 2003-10-28 | Efficient self-absorption gas-liquid stirring device |
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| CN2649170Y true CN2649170Y (en) | 2004-10-20 |
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| CN 200320109378 Expired - Lifetime CN2649170Y (en) | 2003-10-28 | 2003-10-28 | Efficient self-absorption gas-liquid stirring device |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516192C (en) * | 2006-02-21 | 2009-07-22 | 中国科学院过程工程研究所 | Extract-agitating self-suction type biological reactor |
| CN101619225A (en) * | 2008-06-30 | 2010-01-06 | 汉能科技有限公司 | Reaction kettle for direct coal liquefaction and application thereof |
| CN101947428A (en) * | 2010-09-20 | 2011-01-19 | 浙江诚信医化设备有限公司 | Stirring type reaction kettle |
| CN101444715B (en) * | 2008-11-27 | 2011-07-06 | 华东理工大学 | Self-suction mixing reactor |
| CN102580653A (en) * | 2011-12-27 | 2012-07-18 | 杭州海虹精细化工有限公司 | ADC (azodicarbonamide) chlorine oxidation process with self-priming stirring function |
| CN102743996A (en) * | 2012-07-06 | 2012-10-24 | 浙江长江搅拌设备有限公司 | Extraction and mixing blender |
| CN102861548A (en) * | 2010-09-20 | 2013-01-09 | 浙江诚信医化设备有限公司 | Stirring type reacting kettle |
| CN102942518A (en) * | 2012-11-30 | 2013-02-27 | 江苏扬农化工股份有限公司 | Chlorination synthesis method of pyridine derivatives |
| CN104557639A (en) * | 2014-12-22 | 2015-04-29 | 沈阳化工研究院有限公司 | Method of preparing 2-nitro-4-methylsulfonyl benzoic acid |
| CN104772083A (en) * | 2015-03-18 | 2015-07-15 | 四川中哲新材料科技有限公司 | Gas-liquid mixing and stirring device |
| CN105597582A (en) * | 2016-03-24 | 2016-05-25 | 华东理工大学 | Mechanically-stirring type continuous emulsifier and emulsifying method |
| CN105646293A (en) * | 2015-12-19 | 2016-06-08 | 浙江新化化工股份有限公司 | Preparation method of alkylbenzene sulfonic acid organic amine salt |
| CN105771736A (en) * | 2016-05-06 | 2016-07-20 | 烟台民望机电技术有限公司 | Agitator |
| CN107744730A (en) * | 2017-11-07 | 2018-03-02 | 山东新蓝环保科技有限公司 | A kind of quick manufacturing machine of urea for vehicle solution |
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| CN110449050A (en) * | 2019-09-12 | 2019-11-15 | 中国石油大学(华东) | A kind of carbon dioxide drive carbon dioxide foam production device |
| CN113107440A (en) * | 2021-04-26 | 2021-07-13 | 西南石油大学 | Well carbon dioxide foam injection device |
| CN113522102A (en) * | 2021-07-30 | 2021-10-22 | 沈阳铝镁设计研究院有限公司 | Flood absorption efficiency-increasing generating device |
| CN114965852A (en) * | 2021-02-25 | 2022-08-30 | 中国石油天然气股份有限公司 | Ethylene gas phase polymerization evaluation test device |
| WO2023151308A1 (en) * | 2022-02-14 | 2023-08-17 | 江南大学 | Stirrer having self-priming and gas-liquid dispersion functions |
| CN118403592A (en) * | 2024-07-04 | 2024-07-30 | 山东越洋玻璃钢有限公司 | Stirring shaft of reaction kettle |
-
2003
- 2003-10-28 CN CN 200320109378 patent/CN2649170Y/en not_active Expired - Lifetime
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516192C (en) * | 2006-02-21 | 2009-07-22 | 中国科学院过程工程研究所 | Extract-agitating self-suction type biological reactor |
| CN101619225A (en) * | 2008-06-30 | 2010-01-06 | 汉能科技有限公司 | Reaction kettle for direct coal liquefaction and application thereof |
| CN101444715B (en) * | 2008-11-27 | 2011-07-06 | 华东理工大学 | Self-suction mixing reactor |
| CN102861548A (en) * | 2010-09-20 | 2013-01-09 | 浙江诚信医化设备有限公司 | Stirring type reacting kettle |
| CN101947428B (en) * | 2010-09-20 | 2013-01-30 | 浙江诚信医化设备有限公司 | Stirring type reaction kettle |
| CN101947428A (en) * | 2010-09-20 | 2011-01-19 | 浙江诚信医化设备有限公司 | Stirring type reaction kettle |
| CN102580653A (en) * | 2011-12-27 | 2012-07-18 | 杭州海虹精细化工有限公司 | ADC (azodicarbonamide) chlorine oxidation process with self-priming stirring function |
| CN102743996A (en) * | 2012-07-06 | 2012-10-24 | 浙江长江搅拌设备有限公司 | Extraction and mixing blender |
| CN102942518A (en) * | 2012-11-30 | 2013-02-27 | 江苏扬农化工股份有限公司 | Chlorination synthesis method of pyridine derivatives |
| CN102942518B (en) * | 2012-11-30 | 2014-06-04 | 江苏优嘉化学有限公司 | Chlorination synthesis method of pyridine derivatives |
| CN104557639A (en) * | 2014-12-22 | 2015-04-29 | 沈阳化工研究院有限公司 | Method of preparing 2-nitro-4-methylsulfonyl benzoic acid |
| CN104772083A (en) * | 2015-03-18 | 2015-07-15 | 四川中哲新材料科技有限公司 | Gas-liquid mixing and stirring device |
| CN105646293A (en) * | 2015-12-19 | 2016-06-08 | 浙江新化化工股份有限公司 | Preparation method of alkylbenzene sulfonic acid organic amine salt |
| CN105597582B (en) * | 2016-03-24 | 2019-07-02 | 华东理工大学 | A kind of mechanical agitation type Continuous Emulsifier and emulsification method |
| CN105597582A (en) * | 2016-03-24 | 2016-05-25 | 华东理工大学 | Mechanically-stirring type continuous emulsifier and emulsifying method |
| CN105771736A (en) * | 2016-05-06 | 2016-07-20 | 烟台民望机电技术有限公司 | Agitator |
| CN105771736B (en) * | 2016-05-06 | 2018-06-08 | 新沂市港发商贸有限公司 | A kind of blender |
| CN107744730A (en) * | 2017-11-07 | 2018-03-02 | 山东新蓝环保科技有限公司 | A kind of quick manufacturing machine of urea for vehicle solution |
| CN108970457A (en) * | 2018-08-01 | 2018-12-11 | 磐安县宸熙工艺品有限公司 | A kind of mixing arrangement for solid waste reprocessing preparation process product |
| CN108970457B (en) * | 2018-08-01 | 2020-11-17 | 磐安县宸熙工艺品有限公司 | Mixing device for reprocessing solid waste to prepare artware |
| CN110449050A (en) * | 2019-09-12 | 2019-11-15 | 中国石油大学(华东) | A kind of carbon dioxide drive carbon dioxide foam production device |
| CN114965852A (en) * | 2021-02-25 | 2022-08-30 | 中国石油天然气股份有限公司 | Ethylene gas phase polymerization evaluation test device |
| CN113107440A (en) * | 2021-04-26 | 2021-07-13 | 西南石油大学 | Well carbon dioxide foam injection device |
| CN113107440B (en) * | 2021-04-26 | 2022-04-26 | 西南石油大学 | Well carbon dioxide foam injection device |
| CN113522102A (en) * | 2021-07-30 | 2021-10-22 | 沈阳铝镁设计研究院有限公司 | Flood absorption efficiency-increasing generating device |
| WO2023151308A1 (en) * | 2022-02-14 | 2023-08-17 | 江南大学 | Stirrer having self-priming and gas-liquid dispersion functions |
| CN118403592A (en) * | 2024-07-04 | 2024-07-30 | 山东越洋玻璃钢有限公司 | Stirring shaft of reaction kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131028 Granted publication date: 20041020 |