CN101352664A - Air lifting reverse circulation agitating apparatus - Google Patents
Air lifting reverse circulation agitating apparatus Download PDFInfo
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- CN101352664A CN101352664A CNA2007101194841A CN200710119484A CN101352664A CN 101352664 A CN101352664 A CN 101352664A CN A2007101194841 A CNA2007101194841 A CN A2007101194841A CN 200710119484 A CN200710119484 A CN 200710119484A CN 101352664 A CN101352664 A CN 101352664A
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Abstract
The invention relates to a churn-dasher for chemical reaction, in particular to a gas-lift reverse-circulation churn-dasher which comprises a reaction vessel which can form a circulation loop, a feed inlet arranged at the upper part of the reaction vessel, a discharge port arranged at the bottom of the reaction vessel, a vent arranged at the upper part of the reaction vessel and an air intake arranged below the vent on the reaction vessel. A gas-liquid separator, a vent of which is connected with a pressure limiting valve, is arranged on the vent. The churn-dasher of the invention can ensure that gas-liquid reactants or gas-liquid-solid reactants can be fully blended and can achieve better mass and heat transfer effect.
Description
Technical field
The present invention relates to the agitating device of chemical reaction, and be particularly related to a kind of air lifting reverse circulation agitating apparatus.
Background technology
Traditional chemical reaction stirring technique mainly contains mechanical agitation, magnetic agitation, the stirring of mozzle circulation etc.
In order to improve churned mechanically mixing effect, chemists constantly attempt the stirring arm of different shape, but churned mechanically mass-and heat-transfer effect can not be fully up to expectations, and for the confined reaction system, churned mechanically sealing problem and seal consumption also are difficult to solve well.For application such as microwave chemical reactions,, mechanical agitation is greatly limited because of the mechanical agitation transmission device can not use metal material (forming microwave antenna with microwave attenuator).
Magnetic agitation mainly is subject to and can't be applied in the device that reaction scale is amplified.
The multilayer shrouding ring flow reactor (when the reactor diameter is big) that (liquid following spray or gas-lifting type) circulation stirs and develops based on this, more piece shrouding ring flow reactor (when the reactor height is higher) has improved the efficient and the mass-and heat-transfer effect that stir to a certain extent, but in view of different reaction system solid reactant ratios, shape difference and reaction system difference of flowability are very big, circulation stirs the otherness of actual mass-and heat-transfer effect in the differential responses dielectric to be difficult to quantize, and more is difficult to use different fluid model designs respectively and change liquid or gas emitted dose/eject position at different reaction medium bodies, parameters such as mozzle specification/position.
Secondly, the circulation stirred reactor has certain complexity on technology, and the application of nonmetallic materials also has been subjected to very big restriction.
Summary of the invention
Purpose of the present invention is exactly at above-mentioned the deficiencies in the prior art, a kind of air lifting reverse circulation agitating apparatus is provided, in the reactor that can form closed circuit, by adding gas, form low-gravity solution-air or gas-liquid-solid blending agent body, and raised automatically by high specific gravity liquid phase or liquid-solid blending agent body and to form recycled back and flow, solution-air or gas-liquid-solid reaction thing are fully mixed, reach mass-and heat-transfer effect preferably.
A kind of air lifting reverse circulation agitating apparatus of the present invention comprises: the reaction vessel that forms closed circuit, be arranged at the charging aperture on above-mentioned reaction vessel top, be arranged at the discharging opening of above-mentioned reaction container bottom, be arranged at the exhaust outlet on above-mentioned reaction vessel top, and be arranged at the air inlet on the reaction vessel of above-mentioned exhaust outlet below; Above-mentioned exhaust outlet is provided with gas-liquid separator, and the exhaust outlet of above-mentioned gas-liquid separator is connected with pressure limiting valve.
Above-mentioned reaction vessel can be 0 shape, U-shaped, spirality, Double-spiral and similar " day " font of band cross under and the reaction vessel with many cross unders of " order " font.
Above-mentioned charging aperture can be arranged at the top of reaction vessel, and number is one or more.
Above-mentioned air inlet is externally connected to the gas piping of stretching to the outer, and the other end of above-mentioned gas pipeline is connected with gas supply device.
Gas piping between above-mentioned air inlet and the above-mentioned gas feeding mechanism is provided with gas flow control device.
The top of the closed circuit in above-mentioned reaction vessel is provided with flow velocity and/or flow detector.
Air lifting reverse circulation agitating apparatus of the present invention, also comprise the master control device, above-mentioned gas volume control device and above-mentioned flow velocity and/or flow detector all are connected to above-mentioned master control device, reaction medium rate of flow of fluid and/or flow that the flow of above-mentioned master control device by the gas of control by the above-mentioned gas volume control device obtains being scheduled to.
The gas that enters reaction vessel by the above-mentioned gas pipeline from the above-mentioned gas feeding mechanism is compressed air, inert gas, reacting gas or through pre-cooled or pre-warmed gas.
Above-mentioned air inlet is arranged at the side of above-mentioned reaction vessel, and the distance at the top of the above-mentioned reaction vessel of distance is not less than 1/3 of height for reactor.
Above-mentioned reaction vessel is provided with one or more air inlets.
Above-mentioned exhaust outlet is arranged at the position intermediate basically on reaction vessel top, and above-mentioned exhaust outlet is connected with retracting device by pressure limiting valve.
In view of traditional churned mechanically mass-and heat-transfer poor effect, and for the confined reaction system, churned mechanically sealing problem and seal consumption also are difficult to solve well; Traditional magnetic agitation can't be applied in the device that reaction scale is amplified; The circulation paddling process has improved the efficient and the mass-and heat-transfer effect that stir to a certain extent, but set up different fluid models respectively at different reaction systems, to determine that parameters such as gas/liquid body emitted dose/eject position, mozzle specification/position almost are impossible, therefore actual mass-and heat-transfer effect is difficult to quantize, and, circulation stirred reactor complex process, the application of nonmetallic materials is restricted, and is difficult to be applied in the microwave chemical reaction apparatus of more efficient.
Compared with prior art, the present invention has following beneficial effect:
1, air lifting reverse circulation agitating apparatus of the present invention can improve the stirring efficiency of chemical reaction solution-air or gas-liquid-solid reaction more effectively, the mode that this device has fundamentally changed the reaction medium contact and mixed, make the mass transfer and the heat transfer of course of reaction obtain further reinforcement, and be suitable for normal pressure and confined reaction fully.This device is by adding reacting gas; inert protective gas or common Compressed Gas; form low-gravity solution-air or gas-liquid-solid blending agent body; and the high specific gravity liquid phase or the liquid-solid blending agent body that are not contained gas automatically upwards push; the liquid phase or the solid-liquid blending agent body that enter mixed zone, air admission hole top mix with stirring gas; form new low-gravity dielectric ... so repeat; make the working media body produce the circulation that circulates continuously and automatically; medium is in height turbulence state; medium itself is as the carrier of kinetic energy and momentum; under the effect of shearing force, realize energy exchange.Under the high turbulence disturbance, also can make solid reactant or catalyst be in good suspended state.Gas, liquid, solid precursor reactant thing has increased gas-liquid-solid contact and mixing again effectively because of the relative motion that gravity acts in the Turbulence Media body.
2, device of the present invention can accurately quantize the turbulence state of dielectric by flow velocity and the traffic characteristic of dielectric in reaction tube, and can stir gas flow by control, accurately controls the differential responses dielectric and reaches mixing effect identical or can be quantitative.
3, in addition, as the non-mechanical agitating device that but can produce mechanical energy, apparatus of the present invention need not mechanical transmission component or hardware, can be widely used in various chemical reaction equipments such as comprising microwave chemical reaction.
4, the reaction unit that amplifies for reaction scale also can use the reactor of " day " font, " order " font even more cross unders and corresponding multichannel to stir the gas inlet structure.
Description of drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.For the person of ordinary skill in the field, from detailed description of the invention, above-mentioned and other purposes of the present invention, feature and advantage will be apparent.
Fig. 1 is the structural representation of an embodiment of air lifting reverse circulation agitating apparatus of the present invention;
Fig. 2 is the structural representation of another embodiment of air lifting reverse circulation agitating apparatus of the present invention.
The specific embodiment
With reference to Fig. 1, Fig. 1 is the structural representation of an embodiment of air lifting reverse circulation agitating apparatus of the present invention.
A kind of air lifting reverse circulation agitating apparatus of the present invention comprises:
The U-shaped reaction vessel 13 of band cross under, portion can form closed circuit within it;
Be arranged at two charging apertures 3 at above-mentioned reaction vessel 13 tops, above-mentioned charging aperture 3 is provided with valve 31, for the sealing with charging aperture of entering of reaction mass; Certainly, the number of above-mentioned charging aperture 3 is not limited to two, can be according to the difference of the needs of reaction and the structure of reaction vessel 13 for one or more, and the position of above-mentioned charging aperture 3 also is not limited to diagram, generally is located at the top of reaction vessel 13, and preferable is the top;
Be arranged at the discharging opening 12 of above-mentioned reaction vessel 13 bottoms, discharging opening 12 is provided with valve or other devices are discharged for material and the sealing of discharging opening 12; The number of certain above-mentioned discharging opening 12 also is not limited to 1, can be for two or more;
Be arranged at the air inlet 8 of arc upper edge, 13 end of above-mentioned reaction vessel, air inlet 8 can external gas piping 10 with the entering of supplied gas, air inlet 8 is the closer to the bottom, it is good more to put forward the slag effect, stirring efficiency is high more;
And the exhaust outlet that places above-mentioned reaction vessel 13 tops; above-mentioned exhaust outlet is provided with gas-liquid separator 4; the exhaust outlet of gas-liquid separator 4 connects pressure limiting valve 2 and retracting device 1 successively; described pressure limiting valve 2 makes under the reaction under high pressure condition and also can use device of the present invention; pressure limiting valve 2 can be according to reaction required pressure adjustment release pressure, and retracting device is guaranteed environment protection emission.
On the gas piping 10 of above-mentioned air inlet 8 outsides, be connected with the gas supply device (not shown); On the gas piping 10 between above-mentioned air inlet 8 and the gas supply device, can further be provided with gas flow control device 9; On the cross under of the closed circuit in above-mentioned reaction vessel 13 flow velocity and/or flow detector 5 can be set further;
Above-mentioned gas volume control device 9 and above-mentioned flow velocity and/or flow detector 5 all are connected to a master control device 11, master control device 11 obtains corresponding reaction medium rate of flow of fluid and/or flow by the flow of the gas of control by above-mentioned gas volume control device 9, to reach corresponding mixing effect;
Entering the gas of reaction vessel from the above-mentioned gas feeding mechanism by above-mentioned gas pipeline 10 can be for reacting gas such as inert gases such as compressed air, nitrogen, hydrogen or through pre-cooled or pre-warmed gas.
The stirring gas that is entered by gas piping 10 during work moves upward along the direction of air inlet 8, stir gas and reaction liquid or solid and form low-gravity solution-air or gas-liquid-solid blending agent body, reactant 6-1 moves upward along arrow A-1 direction under the promotion of the reaction medium body 6 on bubble 7 drives or promotion and right side, in the top gas of U-shaped reaction vessel since the centrifugation of gas-liquid separator 4 discharge from exhaust outlet, reactant advances along arrow A-3 direction is continuous, hyperbaric liquid phase or liquid-solid hybrid reaction dielectric 6 are along arrow A-4, A-5 continues motion, the reactant of extruding bottom, the liquid phase or the solid-liquid blending agent body that enter the mixed zone of air inlet 8 tops mix with stirring gas, form new low-gravity dielectric and move upward, begin a new circulation along arrow A-1 direction.So repeat, make dielectric produce the circulation that circulates continuously and automatically, dielectric is in height turbulence state, and dielectric itself under the effect of shearing force, is realized energy exchange as the carrier of kinetic energy and momentum.Under the high turbulence disturbance, also can make solid reactant or catalyst be in good suspended state.Gas, liquid, solid precursor reactant thing has increased gas-liquid-solid contact and mixing again effectively because of the relative motion that gravity acts in the Turbulence Media body.
With reference to Fig. 2, Fig. 2 is the structural representation of another embodiment of air lifting reverse circulation agitating apparatus of the present invention.
Different with Fig. 1, the reaction vessel 23 of this device is " day " font, the upper edge of the end arc of the reaction vessel 23 of " day " font and middle cross under are provided with two air inlets 28, be respectively arranged with gas flow control device 29 on the gas piping 10 of two air inlets 28 of connection, cell therefor 23 inside also are provided with two flow velocitys and/or flow detector 25.Shown in arrow among the figure, just can form two circulations during work.Should understand, the implementation of present embodiment and embodiment shown in Figure 1 are similar, do not repeat them here.
Should understand, in the device that reaction scale is amplified, above-mentioned air inlet 28, gas flow control device 29, flow velocity and/or flow detector 25, charging aperture 3 and discharging opening 12 can be a plurality of, for example air inlet can be for perpendicular to two on the direction of paper row, and it is provided with according to the specification of reaction vessel 23 etc. and is advisable to reach required intensity of circulation.
Though; the present invention clearly demonstrates by above embodiment and accompanying drawing thereof; yet under the situation that does not deviate from spirit of the present invention and essence thereof; the person of ordinary skill in the field works as can make various corresponding variations and correction according to the present invention, but these corresponding variations and correction all should belong to the protection domain of claim of the present invention.
Claims (11)
1. air lifting reverse circulation agitating apparatus, it is characterized in that comprising: the reaction vessel that forms closed circuit, be arranged at the charging aperture on above-mentioned reaction vessel top, be arranged at the discharging opening of above-mentioned reaction container bottom, be arranged at the exhaust outlet on above-mentioned reaction vessel top, and be arranged at the air inlet on the reaction vessel of above-mentioned exhaust outlet below; Above-mentioned exhaust outlet is provided with gas-liquid separator, and the exhaust outlet of above-mentioned gas-liquid separator is connected with pressure limiting valve.
2. air lifting reverse circulation agitating apparatus according to claim 1 is characterized in that above-mentioned reaction vessel is the U-shaped, spirality, Double-spiral of O shape, band cross under and with the reaction vessel of many cross unders.
3. air lifting reverse circulation agitating apparatus according to claim 1 and 2 is characterized in that above-mentioned charging aperture is arranged at the top of reaction vessel, and number is one or more.
4. air lifting reverse circulation agitating apparatus according to claim 1 is characterized in that being externally connected to the gas piping of stretching to the outer at above-mentioned air inlet, and the other end of above-mentioned gas pipeline is connected with gas supply device.
5. air lifting reverse circulation agitating apparatus according to claim 4 is characterized in that the gas piping between above-mentioned air inlet and the above-mentioned gas feeding mechanism is provided with gas flow control device.
6. air lifting reverse circulation agitating apparatus according to claim 5 is characterized in that the top of the closed circuit in above-mentioned reaction vessel is provided with flow velocity and/or flow detector.
7. air lifting reverse circulation agitating apparatus according to claim 6, it is characterized in that also comprising the master control device, above-mentioned gas volume control device and above-mentioned flow velocity and/or flow detector all are connected to above-mentioned master control device, reaction medium rate of flow of fluid and/or flow that the flow of above-mentioned master control device by the gas of control by the above-mentioned gas volume control device obtains being scheduled to.
8. according to each described air lifting reverse circulation agitating apparatus in the claim 4 to 7, it is characterized in that from the gas that the above-mentioned gas feeding mechanism enters reaction vessel by the above-mentioned gas pipeline be compressed air, inert gas, reacting gas or through pre-cooled or pre-warmed gas.
9. air lifting reverse circulation agitating apparatus according to claim 1 and 2 is characterized in that above-mentioned air inlet is arranged at the side of above-mentioned reaction vessel, and the distance at the top of the above-mentioned reaction vessel of distance is not less than 1/3 of height for reactor.
10. air lifting reverse circulation agitating apparatus according to claim 9 is characterized in that above-mentioned reaction vessel is provided with one or more air inlets.
11. air lifting reverse circulation agitating apparatus according to claim 1 and 2 is characterized in that above-mentioned exhaust outlet is arranged at the position intermediate basically on reaction vessel top, above-mentioned exhaust outlet is connected with retracting device by pressure limiting valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101194841A CN101352664A (en) | 2007-07-25 | 2007-07-25 | Air lifting reverse circulation agitating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101194841A CN101352664A (en) | 2007-07-25 | 2007-07-25 | Air lifting reverse circulation agitating apparatus |
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| CN101352664A true CN101352664A (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101194841A Pending CN101352664A (en) | 2007-07-25 | 2007-07-25 | Air lifting reverse circulation agitating apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464076A (en) * | 2013-09-11 | 2013-12-25 | 宜兴天力化工纳米科技有限公司 | Energy-saving carbonization reactor |
| CN105044382A (en) * | 2015-03-19 | 2015-11-11 | 江苏大学 | Test board for measuring overall flow velocity of submersible mixer, and method for measuring overall flow velocity of submersible mixer |
| CN106732114A (en) * | 2016-11-17 | 2017-05-31 | 天津滨海光热反射技术有限公司 | Gas mixing stirring-type batch mixing feeding device and control method |
| CN108454605A (en) * | 2018-01-26 | 2018-08-28 | 北汽福田汽车股份有限公司 | Brake fluid system emission sensing device and hydraulic system with the device |
| CN108745176A (en) * | 2018-06-22 | 2018-11-06 | 苏州浔宇新材料科技有限公司 | A kind of pesticide preparation device for agricultural production |
-
2007
- 2007-07-25 CN CNA2007101194841A patent/CN101352664A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464076A (en) * | 2013-09-11 | 2013-12-25 | 宜兴天力化工纳米科技有限公司 | Energy-saving carbonization reactor |
| CN105044382A (en) * | 2015-03-19 | 2015-11-11 | 江苏大学 | Test board for measuring overall flow velocity of submersible mixer, and method for measuring overall flow velocity of submersible mixer |
| CN105044382B (en) * | 2015-03-19 | 2018-06-01 | 江苏大学 | A kind of testboard and method for measuring submersible agitator entirety flow velocity |
| CN106732114A (en) * | 2016-11-17 | 2017-05-31 | 天津滨海光热反射技术有限公司 | Gas mixing stirring-type batch mixing feeding device and control method |
| CN108454605A (en) * | 2018-01-26 | 2018-08-28 | 北汽福田汽车股份有限公司 | Brake fluid system emission sensing device and hydraulic system with the device |
| CN108745176A (en) * | 2018-06-22 | 2018-11-06 | 苏州浔宇新材料科技有限公司 | A kind of pesticide preparation device for agricultural production |
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Open date: 20090128 |