CN100531844C - Multilevel atomizing hypergravity swinging bed with plane reticular lamina reinforcement and uses thereof - Google Patents
Multilevel atomizing hypergravity swinging bed with plane reticular lamina reinforcement and uses thereof Download PDFInfo
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- CN100531844C CN100531844C CNB2007100312728A CN200710031272A CN100531844C CN 100531844 C CN100531844 C CN 100531844C CN B2007100312728 A CNB2007100312728 A CN B2007100312728A CN 200710031272 A CN200710031272 A CN 200710031272A CN 100531844 C CN100531844 C CN 100531844C
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Abstract
The invention discloses a reinforced multi-stage spraying high-gravity rotating packed bed with a flat netted board and the application thereof, the rotating packed bed comprises a rotating bed shell, a motor and a rotating shaft which is arranged inside the shell, the peripheral of the shaft is provided with a hollow tumbler, a middle pipe with a hole is inserted into the middle of the shaft which is provided with hollow structure, the pipe is provided with a liquid inlet port, a rotating shaft inside the tumbler is provided with small holes, the tumbler corresponding to the rotating shaft is also provided with small holes, at least two flat netted boards are fixedly arranged on the tumbler, which are arranged horizontally, and an axial distance is kept between the flat netted boards. The reinforced multi-stage spraying high-gravity rotating packed bed with the flat netted board can not only strengthen the mass-transfer and heat-transfer between gas-liquid two phase, and improve dedusting efficiency, but also can avoid high gas resistance loss, so in the condition of low gas resistance, high heat-transfer and mass-transfer coefficient and high dedusting efficiency can be obtained, and in industry, the invention has the value of being widely spread and applied.
Description
Technical field
The present invention relates to a kind of reinforcement revolving bed, particularly a kind of interband is high-gravity rotating bed and in the application of augmentation of heat transfer, mass transfer and dedusting every the complex intensifying multistage atomizing that splits flat netted board.
Background technology
The existing high-gravity rotating bed various ways that has, donut thin plate filler revolving bed gas-liquid mass transfer reactor (patent No. is ZL95214611.8) wherein, scraped agitated film gas-liquid mass transfer reactor (patent No. is ZL95106281.6), the rotary packed bed gas-liquid heat-transfer mass transfer apparatus of gas axial flow type (patent No. is ZL97212054.8) etc.
During gas liquid cross-flow type high-gravity rotating bed (ZL97212054.8) work, liquid is thrown in the rotating cylinder by the rotating shaft of perforate from the aperture ejection of center water inlet pipe; The drop of motion is run into the rotating cylinder inner surface of rotation at a high speed, and drop is a liquid film at the inner surface upper berth generate of rotation rotating cylinder; Under action of centrifugal force, liquid film sees through the perforate of rotating cylinder, is torn by the silk screen on the rotating cylinder, is shrunk to little drop under capillary effect, enters spraying area; The surface area of liquid has increased one more than the order of magnitude in the fine droplet surface area ratio legacy equipment of the high-gravity rotating bed middle high atomisation of multistage atomizing, thereby make heat transfer efficiency and efficiency of dust collection that multistage atomizing is high-gravity rotating bed improve greatly than traditional equipment, in addition, because the interior circulation of fine droplet is violent and Surface Renewal speed is fast, mass transfer velocity has obtained bigger raising.The mechanism that high-gravity rotating bed heat transfer, mass transfer and the dedusting of multistage atomizing that Here it is strengthened.
Because along with drop divides from central division in outside motion process, the amount of droplets in the unit volume infinitesimal reduces (with square being inversely proportional to of radius); The acceleration difference of the drop of different straight warps generation simultaneously, the butt that does not stop between the drop, liquid-drop diameter increases.Like this, limited the further raising of the high-gravity rotating bed drip gauge area of multistage atomizing and heat transfer, mass transfer and efficiency of dust collection.
Summary of the invention
The objective of the invention is to continue to keep the little advantage of cross flow type hypergravity swinging bed air resistance, improve mass transfer, heat transfer coefficient and efficiency of dust collection between gas-liquid by the method that increases flat netted board.
Technical purpose of the present invention can be achieved through the following technical solutions:
The multistage atomizing that the band flat netted board is strengthened is high-gravity rotating bed, comprises revolving bed housing, motor, rotating shaft; Rotating shaft is positioned at the barrel-type casing center, is connected with motor, and housing is provided with air inlet, gas outlet and liquid outlet; The described rotating shaft periphery that is positioned at housing is provided with a hollow rotating cylinder, rotating shaft is a hollow-core construction, be inserted with the middle water pipe of perforate in the middle of the rotating shaft, water pipe is provided with inlet, the rotating shaft that is positioned at rotating cylinder is furnished with aperture, and also is furnished with aperture on the corresponding rotating cylinder of rotating shaft, and the flat netted board more than at least 2 is fixed on the rotating cylinder, flat netted board is horizontally disposed with, and keeps axial spacing between the web plate.
Be further to realize the object of the invention, useful is, described flat netted board is fixed on the rotating cylinder with the method for welding, and perhaps described flat netted board is fixed on the rotating cylinder with the method for bolted.
Useful is that described rotating cylinder is seamless stainless-steel pipe, titanium pipe or the porous stainless steel steel plate of porous, the cylindrical shell that the titanium coiled sheet becomes; The cylindrical shell that macromolecular material such as the PP of porous, PE, ABS, PU, polytetrafluoroethylene (PTFE) and fiberglass are made; The cylindrical shell that perhaps adopts the material of macromolecular material such as carbon steel, the compound PP of stainless steel structure skeleton, PE, ABS, PU, polytetrafluoroethylene (PTFE) and fiberglass to make.
Useful is, described flat netted board is a skeleton with the metal structure of stainless steel, titanium or PP, PE, ABS, PU, polytetrafluoroethylene (PTFE), fiberglass, arranges stainless steel cloth, titanium net or PP, PE silk screen above.Described flat netted board is dull and stereotyped or be PP, PE, ABS, PU, polytetrafluoroethylene (PTFE), the fiberglass flat board of the densely covered aperture of skeleton with stainless steel, carbon steel structure for PP, PE, ABS, PU, polytetrafluoroethylene (PTFE), the fiberglass of the aperture that gathers.Described flat netted board axial spacing is 50～1500mm.
The multistage atomizing that the band flat netted board is strengthened is high-gravity rotating bed at augmentation of heat transfer, the application of mass transfer and dedusting: come the liquid in the axis of rotation to rotate with rotating shaft, under action of centrifugal force, enter the revolving bed spraying area between flat netted board through the hole on the rotating cylinder, drop carries with axial flow and does axially-movable, on the Plane of rotation web plate, be hunted down, and under action of centrifugal force, at the Plane of rotation web plate upper berth generate meagre liquid film layer of high-speed motion radially, produce strong turbulent flow collision with axial flow by Plane of rotation web plate hole, strengthen the heat and mass between the gas-liquid, the liquid film of drawout has capture effect efficiently to the dust granules in the middle of the air-flow, reaches the purpose of intensified dust removal.
The present invention is on the basis of gas liquid cross-flow type high-gravity rotating bed (ZL97212054.8), for further strengthening the mass transfer and capture ability to dust granules between gas-liquid two-phase, splits the Plane of rotation web plate at interval on rotating cylinder.Enter the fine droplet of spraying area, be subjected to the make progress effect of drag force of gravity and axial flow simultaneously, rise vertically under the carrying of air-flow, the part drop is run into flat netted board; Under action of centrifugal force, silk screen upper berth generate radially high-speed motion meagre liquid film layer or be atomized into more small drop, produce strong turbulent flow collision with axial flow by Plane of rotation web plate hole, further improve the contact area of gas-liquid two-phase and the Surface Renewal speed of liquid film, the liquid film of drawout has capture effect efficiently to the dust granules in the middle of the air-flow, reaches the purpose of intensified dust removal.The schedule of reinforcement that flat netted board is strengthened mass transfer is to be the improvement of the rotary packed bed gas-liquid heat-transfer mass transfer apparatus of gas axial flow type of ZL97212054.8 to the patent No..On the basis that has kept the low advantage of former rotary packed bed device air resistance,, further strengthen mass transfer between gas-liquid two-phase, conduct heat and remove the dust granules in the gas by adding the method for flat netted board.
The relative prior art of the present invention has following advantage and effect: the flat netted board of placing at the rotating cylinder urceolus is big owing to percent opening, the resistance of convection cell is less, and utilize drop by flat netted board the time, to produce strong turbulent flow at the high speed liquid film and the air-flow of silk screen upper berth generate, strengthen the mass-and heat-transfer between the gas-liquid; Flat netted board and drop have strong capture effect to the grit in the gas.Like this, realized strengthening the purpose of mass transfer between gas-liquid two-phase, heat transfer and dedusting by adding web plate.
Description of drawings
Figure 1A is for fixing the web plate structural representation of two-layer stainless steel cloth on a kind of stainless steel structure;
Figure 1B is a kind of porous web plate structural representation of frp lining stainless steel insert system;
Fig. 2 is that interband is every the high-gravity rotating bed structural representation of the multistage atomizing of flat netted board;
Fig. 3 is the structure and the location drawing of the rib on high-gravity rotating bed rotating cylinder of multistage atomizing and the rotating cylinder.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but the scope of protection of present invention is not limited to the scope of embodiment statement.
Fig. 2 shows interband of the present invention every the high-gravity rotating bed a kind of version of the multistage atomizing of flat netted board.As shown in Figure 2, interband is every high-gravity rotating bed housing 10, rotating shaft 11, flat netted board 9, rotating cylinder 7, motor 1 and the rotation demister 4 of comprising of the multistage atomizing of flat netted board.Rotating shaft 11 is positioned at barrel-type casing 10 centers, is connected with motor 1, and housing 10 lower ends are respectively equipped with air inlet 2 and liquid outlet 12, and the upper end is provided with gas outlet 5, and rotation demister 4 is fixed in the rotating shaft 11 by the method for welding or bolting; The rotating shaft periphery that is positioned at housing is provided with a hollow rotating cylinder 7, rotating cylinder is the high-gravity rotating bed rotating cylinder of multistage atomizing, it specifically is the stainless steel seamless pipe of porous, also can select the seamless pipe of titanium material for use or roll and form by the perforated plate of stainless steel or titanium material, drum surface is coated with silk screen 3, and silk screen 3 is fixed on the rotating cylinder 7 by the fixing method of pipe clamp.Rotating shaft 11 is a hollow-core construction, the upper end is provided with inlet 6, the rotating shaft 11 that is positioned at rotating cylinder is furnished with aperture, also be furnished with aperture on the rotating cylinder, polylith flat netted board 9 is fixed on the rotating cylinder 7, and flat netted board is horizontally disposed with, and keeps axial spacing between the flat netted board, according to the size of housing 10 and the quantity of flat netted board, the flat netted board axial spacing can be adjusted between 10～500mm.Shown in Figure 1A, the flat netted board stainless steel is a skeleton, and also available titanium material is a skeleton, arranges stainless steel cloth or titanium wire network above the skeleton, flat netted board 9 perpendicular to rotating shaft 11 to and be horizontally disposed, split installation at interval on rotating cylinder, have 9 flat netted boards, the external diameter of rotating cylinder cylindrical shell is 160mm, the height of cylindrical shell is 600mm, flat netted board spacing distance 60mm, the external diameter of flat netted board are 280mm, and flat netted board is by on the rib that is bolted to rotating cylinder.As shown in Figure 3, evenly be fixed with rotating cylinder rib 8 on rotating cylinder 7, have a circle bolt hole on rib, the bolt hole on the inner ring of this bolt hole and web plate matches, and can use bolting.
During revolving bed work, liquid is thrown in the rotating cylinder by the rotating shaft of perforate from the aperture ejection of center water inlet pipe; The drop of motion is run into the rotating cylinder inner surface of rotation at a high speed, and drop is a liquid film at the inner surface upper berth generate of rotation rotating cylinder; Under action of centrifugal force, liquid film sees through the perforate of rotating cylinder, is torn by the silk screen on the rotating cylinder, is shrunk to little drop under capillary effect, enters spraying area; The surface area of liquid has increased one more than the order of magnitude in the fine droplet surface area ratio legacy equipment of the high-gravity rotating bed middle high atomisation of multistage atomizing, thereby make heat transfer efficiency and efficiency of dust collection that multistage atomizing is high-gravity rotating bed improve greatly than traditional equipment, in addition, because the interior circulation of fine droplet is violent and Surface Renewal speed is fast, mass transfer velocity has obtained bigger raising.The mechanism that high-gravity rotating bed heat transfer, mass transfer and the dedusting of multistage atomizing that Here it is strengthened.
Enter the fine droplet of spraying area, be subjected to the make progress effect of drag force of gravity and axial flow simultaneously, most of rising vertically under the carrying of air-flow, the part drop is run into flat netted board; Under action of centrifugal force, silk screen upper berth generate radially high-speed motion meagre liquid film layer or be atomized into more small drop, produce strong turbulent flow collision with axial flow by Plane of rotation web plate hole, further improve the contact area of gas-liquid two-phase and the Surface Renewal speed of liquid film, the liquid film of drawout has capture effect efficiently to the dust granules in the middle of the air-flow, reaches the purpose of intensified dust removal.Thereby on the basis of original multistage atomizing revolving bed, further improve heat transfer, mass-transfer efficiency and efficiency of dust collection.
After testing, compare with common multistage atomizing revolving bed, this kind interband has improved 11% every the high-gravity rotating bed total heat transfer coefficient of the reinforcement multistage atomizing that splits flat netted board, and overall mass transfer coefficient has improved 12%, and efficiency of dust collection improves 9%.
As different from Example 1, present embodiment has 2 flat netted boards 9, and flat netted board is skeleton with PP, arranges the making of PE silk screen above; Rotating cylinder is the PP cylindrical shell of porous, and external diameter is 160mm, and the height of cylindrical shell is 600mm, flat netted board spacing distance 200mm, and the external diameter of flat netted board is 280mm, flat netted board is fixed by welding on the rotating cylinder.After testing, compare with common multistage atomizing revolving bed, this kind interband has improved 6% every the high-gravity rotating bed total heat transfer coefficient of the reinforcement multistage atomizing that splits flat netted board, and overall mass transfer coefficient has improved 7%, and efficiency of dust collection improves 5%.
As different from Example 1, present embodiment has 2 flat netted boards, and flat netted board is a kind of porous web plate of perpendicular to axial direction and level, and shown in Figure 1A, flat netted board is a web plate of fixing two-layer stainless steel cloth on a kind of stainless steel structure.Flat netted board splits installation at interval on the rotating cylinder cylindrical shell.Rotating cylinder is the seamless stainless-steel pipe of porous, and the external diameter of rotating cylinder cylindrical shell is 160mm, and the height of cylindrical shell is 600mm, and flat netted board spacing distance 200mm, the external diameter of flat netted board are 280mm, and flat netted board is fixed by welding on the rib of rotating cylinder.After testing, compare with common multistage atomizing revolving bed, this kind interband has improved 6.5% every the high-gravity rotating bed total heat transfer coefficient of the reinforcement multistage atomizing that splits flat netted board, and overall mass transfer coefficient has improved 8%, and efficiency of dust collection improves 6%.
As different from Example 1, flat netted board be a kind of be the fixing porous web plate made of PP silk screen above the skeleton with fiberglass, this skeleton also can be that macromolecular materials such as PP, PE, ABS, PU, polytetrafluoroethylene (PTFE) are made, fixing PE silk on the skeleton.Rotating cylinder 7 is the cylindrical shell that the PP of the inner liner stainless steel steel skeleton of porous makes, it also can be the cylindrical shell of making by macromolecular materials such as PE, ABS, PU, polytetrafluoroethylene (PTFE), the external diameter of rotating cylinder cylindrical shell is 160mm, the height of cylindrical shell is 600mm, flat netted board spacing distance 60mm, the external diameter of flat netted board is 280mm, and flat netted board is by on the rib that is bolted to rotating cylinder.After testing, compare with common multistage atomizing revolving bed, this kind interband has improved 10% every the high-gravity rotating bed total heat transfer coefficient of the reinforcement multistage atomizing that splits flat netted board, and overall mass transfer coefficient has improved 11%, and efficiency of dust collection improves 8%.
As different from Example 1, shown in Figure 1B, flat netted board 9 is porous web plates of making of the PP perforate, also can be the porous web plate that macromolecular material such as PE, ABS, PU, polytetrafluoroethylene (PTFE) or fiberglass flat-plate pore-opening are made.Have 3 flat netted boards, rotating cylinder is the cylindrical shell that the fiberglass of porous is made, and the external diameter of rotating cylinder cylindrical shell is 160mm, the height of cylindrical shell is 600mm, flat netted board spacing distance 150mm, the external diameter of flat netted board are 280mm, and flat netted board is by on the rib that is bolted to rotating cylinder.After testing, compare with common multistage atomizing revolving bed, this kind interband has improved 7% every the high-gravity rotating bed total heat transfer coefficient of the reinforcement multistage atomizing that splits flat netted board, and overall mass transfer coefficient has improved 9%, and efficiency of dust collection improves 7%.
As different from Example 1, flat netted board is a web plate of fixing two-layer titanium silk screen on a kind of titanium structure.Have 4 flat netted boards, rotating cylinder is the seamless titanium tube of porous, and the external diameter of rotating cylinder cylindrical shell is 160mm, and the height of cylindrical shell is 600mm, and flat netted board spacing distance 120mm, the external diameter of flat netted board are 280mm, and flat netted board is fixed by welding on the rib of rotating cylinder.After testing, compare with common multistage atomizing revolving bed, this kind interband has improved 10% every the high-gravity rotating bed total heat transfer coefficient of the reinforcement multistage atomizing that splits flat netted board, and overall mass transfer coefficient has improved 11%, and efficiency of dust collection improves 8%.
As different from Example 1, flat netted board is the porous web plate of titanium.Flat netted board splits installation at interval on the rotating cylinder cylindrical shell, have 5 flat netted boards, rotating cylinder is the cylindrical shell that POROUS TITANIUM PLATE is rolled into, the external diameter of rotating cylinder cylindrical shell is 160mm, the height of cylindrical shell is 600mm, flat netted board spacing distance 100mm, the external diameter of flat netted board are 280mm, and flat netted board is by on the rib that is bolted to rotating cylinder.After testing, compare with common multistage atomizing revolving bed, this kind interband has improved 10.5% every the high-gravity rotating bed total heat transfer coefficient of the reinforcement multistage atomizing that splits flat netted board, and overall mass transfer coefficient has improved 11.2%, and efficiency of dust collection improves 8.8%.
Claims (9)
1, the multistage atomizing of band flat netted board reinforcement is high-gravity rotating bed, comprises revolving bed housing, motor, rotating shaft; Rotating shaft is positioned at the barrel-type casing center, is connected with motor, and housing is provided with air inlet, gas outlet and liquid outlet; It is characterized in that, the described rotating shaft periphery that is positioned at housing is provided with a hollow rotating cylinder, rotating shaft is a hollow-core construction, be inserted with the middle water pipe of perforate in the middle of the rotating shaft, water pipe is provided with inlet, and the rotating shaft that is positioned at rotating cylinder is furnished with aperture, with also be furnished with aperture on the corresponding rotating cylinder of rotating shaft, flat netted board more than at least 2 is fixed on the rotating cylinder, and flat netted board is horizontally disposed with, and keeps axial spacing between the web plate.
2, the multistage atomizing of band flat netted board reinforcement according to claim 1 is high-gravity rotating bed, it is characterized in that, described flat netted board is fixed on the rotating cylinder with the method for welding.
3, the multistage atomizing of band flat netted board reinforcement according to claim 1 is high-gravity rotating bed, it is characterized in that described flat netted board is fixed on the rotating cylinder with the method for bolted.
4, the multistage atomizing of band flat netted board reinforcement according to claim 1 is high-gravity rotating bed, it is characterized in that, described rotating cylinder is seamless stainless-steel pipe, titanium pipe or the porous stainless steel steel plate of porous, the cylindrical shell that the titanium coiled sheet becomes.
5, the multistage atomizing of band flat netted board reinforcement according to claim 1 is high-gravity rotating bed, it is characterized in that, described rotating cylinder is the cylindrical shell that PP, PE, ABS, PU, polytetrafluoroethylene (PTFE) or the fiberglass of porous is made; Or the cylindrical shell of the material making of employing carbon steel, the compound PP of stainless steel structure skeleton, PE, ABS, PU, polytetrafluoroethylene (PTFE) or fiberglass.
6, the multistage atomizing of band flat netted board reinforcement according to claim 1 is high-gravity rotating bed, it is characterized in that, described flat netted board is a skeleton with stainless steel, titanium, or be skeleton with PP, PE, ABS, PU, polytetrafluoroethylene (PTFE), fiberglass, arrange stainless steel cloth, titanium net or PP, PE silk screen above the skeleton.
7, the multistage atomizing of band flat netted board reinforcement according to claim 1 is high-gravity rotating bed, it is characterized in that described flat netted board is dull and stereotyped or be PP, PE, ABS, PU, polytetrafluoroethylene (PTFE), the fiberglass flat board of the densely covered aperture of skeleton with stainless steel, carbon steel structure for PP, PE, ABS, PU, polytetrafluoroethylene (PTFE), the fiberglass of the aperture that gathers.
8, the multistage atomizing of band flat netted board reinforcement according to claim 1 is high-gravity rotating bed, it is characterized in that described flat netted board axial spacing is 10～500mm.
9, the multistage atomizing that the described band flat netted board of claim 1 is strengthened is high-gravity rotating bed at augmentation of heat transfer, the application of mass transfer and dedusting, it is characterized in that, come the liquid in the axis of rotation to rotate with rotating shaft, under action of centrifugal force, enter the revolving bed spraying area between flat netted board through the hole on the rotating cylinder, drop carries with axial flow and does axially-movable, on the Plane of rotation web plate, be hunted down, and under action of centrifugal force, at the Plane of rotation web plate upper berth generate meagre liquid film layer of high-speed motion radially, produce strong turbulent flow collision with axial flow by Plane of rotation web plate hole, strengthen the heat and mass between the gas-liquid, the liquid film of drawout has capture effect efficiently to the dust granules in the middle of the air-flow, reaches the purpose of intensified dust removal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100312728A CN100531844C (en) | 2007-11-06 | 2007-11-06 | Multilevel atomizing hypergravity swinging bed with plane reticular lamina reinforcement and uses thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100312728A CN100531844C (en) | 2007-11-06 | 2007-11-06 | Multilevel atomizing hypergravity swinging bed with plane reticular lamina reinforcement and uses thereof |
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| CN100531844C true CN100531844C (en) | 2009-08-26 |
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| CN106237754B (en) * | 2016-08-18 | 2018-07-17 | 江西萍乡龙发实业股份有限公司 | Gas-liquid multi-stage separation centrifugal atomizing is high-gravity rotating bed |
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