CN110755970A - Counter-flow type supergravity device for removing liquid mist - Google Patents
Counter-flow type supergravity device for removing liquid mist Download PDFInfo
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- CN110755970A CN110755970A CN201810823454.7A CN201810823454A CN110755970A CN 110755970 A CN110755970 A CN 110755970A CN 201810823454 A CN201810823454 A CN 201810823454A CN 110755970 A CN110755970 A CN 110755970A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
Abstract
A counter-flow type super-gravity device for removing liquid mist comprises a shell, a rotating bed unit, a rotating shaft, a mist removing unit and a conduit. The rotating bed unit is arranged in the shell and is arranged at intervals with the shell to define a circulation space inside. The rotating shaft is connected with the rotating bed unit and extends out of the shell from the rotating bed unit. The demisting unit is arranged in the shell, is connected with the rotating shaft and is connected with the shell through a first dynamic sealing device, and the demisting unit and the rotating bed unit are spaced in the axial direction of the rotating shaft. The conduit extends from outside the housing into the flow-through space. The counter-flow type liquid mist removing supergravity device can remove liquid mist from gas in a counter-flow mode through the gas and the blocked liquid, and has a good mist removing effect.
Description
Technical Field
The invention relates to a hypergravity device for removing liquid fog, in particular to a hypergravity device for removing liquid fog in a counter-flow manner.
Background
In a supergravity device, liquid drops are often entrained by gas subjected to gas-liquid mass transfer to form liquid mist, equipment pollution or liquid loss is easily caused during subsequent chemical use, and a gas-liquid separation device is generally required to separate the liquid drops entrained by the gas.
Chinese patent No. CN 1036766C discloses a cross-flow rotating bed supergravity field device, wherein gas and liquid phases are in cross-flow contact in a packing layer, and then the gas passes through a defogging section in the co-rotation from the rear end of the packing layer to remove liquid droplets. However, the liquid droplets entrained by the gas in the demisting section are blocked and thrown outwards by centrifugal force, so that the liquid mist is removed from the gas by cross-flow of the gas through the packing layer, thereby causing the gas close to the outer side in the radial direction in the demisting section to easily entrain the liquid droplets, and causing poor demisting effect.
Disclosure of Invention
The invention aims to provide a counter-flow type liquid mist removing supergravity device which can overcome the defects of the background technology.
The invention relates to a counter-flow type liquid mist removing supergravity device which comprises a shell, a rotating bed unit, a rotating shaft, a mist removing unit and a conduit. The rotating bed unit is arranged in the shell and is arranged at intervals with the shell to define a circulation space inside. The rotating shaft is connected with the rotating bed unit and extends out of the shell from the rotating bed unit. The demisting unit is arranged in the shell, is connected with the rotating shaft and is connected with the shell through a first dynamic sealing device, and the demisting unit and the rotating bed unit are spaced in the axial direction of the rotating shaft. The conduit extends from outside the housing into the flow-through space.
The invention has the beneficial effects that: the counter-flow type liquid mist removing supergravity device can remove liquid mist from gas in a counter-flow mode through the gas and the blocked liquid, and has a good mist removing effect.
The present invention will be described in detail below:
preferably, the demister unit is spaced from the rotating bed unit in the axial direction of the rotating shaft by an outer partition extending in the radial direction of the rotating shaft to block direct penetration of fluid on both sides of the outer partition.
Preferably, the demister unit is disposed above the rotating bed unit.
Preferably, the defogging unit comprises an inner baffle plate and a defogging layer. The inner partition extends in a radial direction of the rotary shaft to block fluid in the flow-through space from penetrating in an axial direction of the rotary shaft. The mist-removing layer is arranged to intercept liquid droplets entrained by the gas passing radially inwardly through the rotating shaft.
Preferably, the rotating bed unit comprises a base plate and a packed bed. The substrate closely surrounds the rotation axis and extends in a radial direction of the rotation axis to block the fluid in the flow-through space from penetrating. The filling layer and the substrate surround together to define the flow space.
Preferably, the housing includes an inlet port, an outlet port and an outlet port. The gas inlet is adapted to introduce a gas into the enclosure. The gas outlet is suitable for leading out the gas passing through the demisting unit. The liquid outlet is arranged at the bottom of the shell.
More preferably, the liquid mist removing layer has a hollow columnar shape extending in the axial direction of the rotary shaft.
In some embodiments of the invention, the inner partition is connected to the housing by a second dynamic seal. In some embodiments of the invention, the inner partition is connected to the conduit by a second dynamic seal. In some embodiments of the invention, the inner partition is hermetically connected to the rotating shaft.
More preferably, the air outlet is provided at the top of the housing.
Drawings
Other features and effects of the present invention will be apparent from the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of a first embodiment of a counter-flow mist removal hypergravity apparatus of the present invention;
FIG. 2 is a cross-sectional view of a second embodiment of the counter-flow mist-removing hypergravity apparatus of the present invention;
FIG. 3 is a cross-sectional view of a third embodiment of the counter-flow mist eliminator device according to the present invention;
FIG. 4 is a cross-sectional view of a fourth embodiment of the counter-flow mist eliminator device according to the present invention; and
FIG. 5 is a cross-sectional view of a fifth embodiment of the counter-flow mist eliminator device according to the present invention.
Detailed Description
Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.
The invention will be further described in the following examples, but it should be understood that these examples are for illustrative purposes only and are not to be construed as limiting the practice of the invention.
Referring to fig. 1, the first embodiment of the counter-flow type liquid mist removing supergravity device 1 of the present invention comprises a housing 2, a rotating bed unit 3, a rotating shaft 4, a mist removing unit 5, and a duct 6.
The housing 2 comprises an inlet port 21, an outlet port 22, and an outlet port 23. The gas inlet 21 is adapted to introduce gas into the housing 2. The air outlet 22 is provided at the top of the housing 2 and is adapted to lead out the air passing through the demister unit 5. The liquid outlet 23 is disposed at the bottom of the housing 2.
The rotating bed unit 3 is disposed in the housing 2 and spaced apart from the housing 2 to define a flow space 30 therein. In the present embodiment, the rotating bed unit 3 is a rotating packed bed (rotating packed bed). The rotating packed bed includes a base plate 31 and a packed bed 32. The base plate 31 closely surrounds the rotation shaft 4 and extends in a radial direction of the rotation shaft 4 to block fluid penetration in the flow-through space 30. The filling layer 32 and the substrate 31 together define the flow-through space 30. In this embodiment, the gas inlet 21 is arranged at the top of the housing 2 and is adapted to introduce gas into the flow-through space 30. The filling material of the filling layer 32 is selected from wire mesh, glass balls, plastic fillers, activated carbon, zeolite, metal plates, or combinations thereof.
The rotating shaft 4 is connected to the rotating bed unit 3 and extends from the rotating bed unit 3 to the outside of the housing 2.
The demisting unit 5 is disposed in the housing 2 and above the rotating bed unit 3, connected to the rotating shaft 4 through the rotating bed unit 3, and hermetically connected to the housing 2 through a first dynamic seal device 71, and the demisting unit 5 and the rotating bed unit 3 are spaced apart in the axial direction of the rotating shaft 4 by an outer partition 8 extending in the radial direction of the rotating shaft 4, so as to block the fluid on both sides of the outer partition 8 from directly penetrating. The defogging unit 5 includes an inner partition 51 and a defogging layer 52. The inner partition 51 extends in the radial direction of the rotary shaft 4 and is connected air-tightly to the housing 2 by a second dynamic seal 72 and to the outer partition 8 to block the fluid in the flow-through space 30 from penetrating in the axial direction of the rotary shaft 4. In the present embodiment, the outer partition 8 and the inner partition 51 are a single-piece (single-piece). The mist eliminator 52 serves to stop liquid droplets entrained by the gas passing radially inwardly through the rotating shaft 4. The liquid mist removing layer 52 has a hollow columnar shape extending in the axial direction of the rotary shaft 4. The mist removing layer 52 is hermetically connected to the housing 2 by the first dynamic seal 71. In this embodiment, the mist removing layer 52 is a wire mesh.
The conduit 6 extends from outside the housing 2 through the top of the housing 2 into the flow-through space 30.
When the rotating shaft 4 is driven to rotate externally to rotate the combination of the rotating bed unit 3 and the demister unit 5 relative to the housing 2, the conduit 6 supplies absorption liquid which can be used for absorbing pollutants in the gas, and the absorption liquid flows into the flow-through space 30 via holes (not shown) in the side of the conduit 6. The absorption liquid moves from inside to outside along the radial direction of the rotating shaft 4 as driven by centrifugal force, and is thinned and dispersed into fine liquid droplets, liquid threads, or liquid films in the packed layer 32 to perform gas-liquid mass transfer. In the present embodiment, the gas and the liquid in the packed layer 32 are contacted in a downstream manner in the radial direction of the rotating shaft 4 and pass through the packed layer 32 from the inside to the outside. Then, the liquid flows out from the liquid outlet 23 at the bottom of the shell 2; the gas flows upward to the mist-removing layer 52 and passes through the mist-removing layer 52 from the outside to the inside in the radial direction of the rotating shaft 4, and at the same time, the liquid droplets entrained therein are retained in the mist-removing layer 52 and are thrown outward by centrifugal force, so that the mist can be separated from the gas by the gas and the retained liquid in a counter-current manner. Finally, the dry gas passing through the defogging unit 5 is exhausted from the outlet 22 at the top of the housing 2.
Referring to fig. 2, the second embodiment of the counter-flow type liquid-mist removing hypergravity device 1 of the present invention is similar to the first embodiment, except that in the second embodiment, the air inlet 21 is provided at the side of the housing 2, the inner partition 51 extends in the radial direction of the rotating shaft 4 and is hermetically connected to the conduit 6 through a second dynamic seal device 72, and the outer partition 8 is spaced from the rotating bed unit 3 in the axial direction of the rotating shaft 4.
When the rotating shaft 4 is externally driven to rotate so that the combination of the rotating bed unit 3 and the demister unit 5 rotates relative to the housing 2, the gas and the liquid in the packed layer 32 are contacted in a counter-current manner in the radial direction of the rotating shaft 4. Subsequently, the gas flows upward through the space between the outer partition 8 and the rotating bed unit 3, and then flows to the mist-removing layer 52.
Referring to fig. 3, a third embodiment of the supergravity device 1 for counterflow mist removal according to the present invention is similar to the second embodiment, with the difference that in the third embodiment, the mist removal unit 5 is directly connected to the rotating shaft 4, the duct 6 extends from the outside of the housing 2 through the side of the housing 2 into the flow-through space 30, and the inner partition 51 extends in the radial direction of the rotating shaft 4 and is hermetically connected to the rotating shaft 4.
Referring to fig. 4, the fourth embodiment of the counter-flow type liquid mist removing supergravity device 1 of the present invention is similar to the third embodiment, and the difference is that in the fourth embodiment, the rotating bed unit 3 is a baffled rotating bed (deflecting) which includes a base plate 31 and three rotating baffles (rotating baffles), and the housing 2 further includes three static baffles (static baffles) inside.
Referring to fig. 5, a fifth embodiment of the counter-flow type mist eliminator 1 according to the present invention is similar to the third embodiment, except that in the fifth embodiment, the mist eliminator 52 is in the form of a filled column extending in the axial direction of the rotating shaft 4.
In summary, the present invention provides a counter-flow type liquid mist removing supergravity device 1, which can remove liquid mist from gas in a counter-flow manner by the arrangement of the mist removing unit 5 and the rotating bed unit 3, and can effectively reduce the liquid droplets entrained during gas discharge, thereby achieving a good mist removing effect.
The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and the invention is still within the scope of the present invention by simple equivalent changes and modifications made according to the claims and the contents of the specification.
Claims (11)
1. A counter-flow type liquid mist removing supergravity device is characterized by comprising:
a housing;
the rotating bed unit is arranged in the shell and is arranged at intervals with the shell to define a circulation space inside;
a rotating shaft connected to the rotating bed unit and extending from the rotating bed unit to the outside of the housing;
the demisting unit is arranged in the shell, is connected with the rotating shaft and is connected with the shell through a first dynamic sealing device, and the demisting unit and the rotating bed unit are spaced in the axial direction of the rotating shaft; and
a conduit extending from outside the housing into the flow-through space.
2. The counter-flow type liquid mist removing supergravity device according to claim 1, characterized in that: the demisting unit and the rotating bed unit are separated in the axial direction of the rotating shaft through an outer partition plate extending in the radial direction of the rotating shaft so as to prevent the fluid on two sides of the outer partition plate from directly penetrating.
3. The counter-flow type liquid mist removing supergravity device according to claim 1, characterized in that: the demisting unit is arranged above the rotating bed unit.
4. The counter-flow type liquid mist removing supergravity device according to claim 1, characterized in that: this defogging unit includes:
an inner partition plate extending in a radial direction of the rotary shaft to block the fluid in the communication space from penetrating in an axial direction of the rotary shaft in cooperation with the outer partition plate; and
a mist-removing layer to intercept liquid droplets entrained by the gas passing radially inwardly through the rotating shaft.
5. The counter-flow type liquid mist removing supergravity device according to claim 1, characterized in that: the rotating bed unit includes:
a base plate closely surrounding the rotation axis and extending in a radial direction of the rotation axis to block fluid penetration in the flow-through space; and
a filling layer, which surrounds the substrate to define the flow space.
6. The counter-flow type liquid mist removing supergravity device according to claim 1, characterized in that: the housing includes:
a gas inlet adapted to introduce a gas into the housing;
a gas outlet adapted to lead out the gas passing through the demister unit; and
a liquid outlet is arranged at the bottom of the shell.
7. The counter-flow type liquid mist removing supergravity device according to claim 4, wherein: the liquid-removing mist layer is in a hollow column shape extending in the axial direction of the rotating shaft.
8. The counter-flow type liquid mist removing supergravity device according to claim 4, wherein: the inner partition is connected to the housing by a second dynamic seal.
9. The counter-flow type liquid mist removing supergravity device according to claim 4, wherein: the inner partition is connected to the conduit by a second dynamic seal.
10. The counter-flow type liquid mist removing supergravity device according to claim 4, wherein: the inner partition is hermetically connected to the rotating shaft.
11. The counter-flow type liquid mist removing supergravity device according to claim 6, wherein: the air outlet is arranged at the top of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810823454.7A CN110755970A (en) | 2018-07-25 | 2018-07-25 | Counter-flow type supergravity device for removing liquid mist |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810823454.7A CN110755970A (en) | 2018-07-25 | 2018-07-25 | Counter-flow type supergravity device for removing liquid mist |
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| CN110755970A true CN110755970A (en) | 2020-02-07 |
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| CN201810823454.7A Pending CN110755970A (en) | 2018-07-25 | 2018-07-25 | Counter-flow type supergravity device for removing liquid mist |
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| CN1059105A (en) * | 1991-10-08 | 1992-03-04 | 北京化工学院 | Rotating bed super gravity field is strengthened transmission and reaction unit |
| CN1507940A (en) * | 2002-12-16 | 2004-06-30 | 中国石油化工股份有限公司 | Catalytic reaction method |
| CN202015548U (en) * | 2011-03-01 | 2011-10-26 | 上海安赐机械设备有限公司 | Hyper-gravity gas-liquid reinforced separation device |
| CN102732327A (en) * | 2012-06-26 | 2012-10-17 | 窦伟星 | Method for recovering benzene hydrocarbon from coal gas |
| CN202860157U (en) * | 2012-10-23 | 2013-04-10 | 神华集团有限责任公司 | Composite packing type counterflow rotating packed bed device |
| CN104353356A (en) * | 2014-11-26 | 2015-02-18 | 北京首钢国际工程技术有限公司 | Pelletizing flue gas cleaning and adsorbing tower of travelling grate machine |
| WO2015055119A1 (en) * | 2013-10-16 | 2015-04-23 | 北京化工大学 | Novel passive supergravity rotating bed apparatus |
| CN106362529A (en) * | 2016-11-01 | 2017-02-01 | 凯天环保科技股份有限公司 | High-efficiency adsorbing and purifying device |
| CN206063829U (en) * | 2016-08-31 | 2017-04-05 | 青岛科技大学 | Fluid-tight adverse current type hypergravity swinging bed device |
| CN206911052U (en) * | 2017-07-06 | 2018-01-23 | 金广恒环保技术（南京）股份有限公司 | A kind of efficiently coating waste gas purifying processing device |
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2018
- 2018-07-25 CN CN201810823454.7A patent/CN110755970A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059105A (en) * | 1991-10-08 | 1992-03-04 | 北京化工学院 | Rotating bed super gravity field is strengthened transmission and reaction unit |
| CN1507940A (en) * | 2002-12-16 | 2004-06-30 | 中国石油化工股份有限公司 | Catalytic reaction method |
| CN202015548U (en) * | 2011-03-01 | 2011-10-26 | 上海安赐机械设备有限公司 | Hyper-gravity gas-liquid reinforced separation device |
| CN102732327A (en) * | 2012-06-26 | 2012-10-17 | 窦伟星 | Method for recovering benzene hydrocarbon from coal gas |
| CN202860157U (en) * | 2012-10-23 | 2013-04-10 | 神华集团有限责任公司 | Composite packing type counterflow rotating packed bed device |
| WO2015055119A1 (en) * | 2013-10-16 | 2015-04-23 | 北京化工大学 | Novel passive supergravity rotating bed apparatus |
| CN104353356A (en) * | 2014-11-26 | 2015-02-18 | 北京首钢国际工程技术有限公司 | Pelletizing flue gas cleaning and adsorbing tower of travelling grate machine |
| CN206063829U (en) * | 2016-08-31 | 2017-04-05 | 青岛科技大学 | Fluid-tight adverse current type hypergravity swinging bed device |
| CN106362529A (en) * | 2016-11-01 | 2017-02-01 | 凯天环保科技股份有限公司 | High-efficiency adsorbing and purifying device |
| CN206911052U (en) * | 2017-07-06 | 2018-01-23 | 金广恒环保技术（南京）股份有限公司 | A kind of efficiently coating waste gas purifying processing device |
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Application publication date: 20200207 |