CN108499227A - A kind of efficient defogging equipment - Google Patents
A kind of efficient defogging equipment Download PDFInfo
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- CN108499227A CN108499227A CN201710109121.3A CN201710109121A CN108499227A CN 108499227 A CN108499227 A CN 108499227A CN 201710109121 A CN201710109121 A CN 201710109121A CN 108499227 A CN108499227 A CN 108499227A
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- riser
- blade
- line
- defogging equipment
- outer barrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
Abstract
The invention discloses a kind of efficient defogging equipments, including several demisting components arranged side by side, and each demisting component includes riser and outer barrel, and outer barrel is arranged in the outside of riser, and on the same axis with riser；The riser is divide into upper part and lower part in an axial direction, and top is divided into riser I, and lower part is divided into riser II, and riser II is fixed on tower tray, and riser I is connect with riser II by bearing；Plate is covered in the top setting of riser I, several seams are provided on the circumference of riser I, provided circumferentially about has blade in the riser I stitched close to each item.The efficient defogging equipment of the present invention realizes the separation of drop and gas by multiple baffling, acceleration and shaving effect of the fluid in flow process.The efficient defogging equipment of the present invention is simple in structure, and pressure drop is small, less scaling, easy for installation, reduces entrainment, can effectively realize gas-liquid separation, is particularly suitable for the larger occasion of gas flow fluctuations.
Description
Technical field
The present invention relates to a kind of efficient defogging equipment, belong to the gas-liquid separation field in chemical engineering, be suitable for chemical industry and
Gas-liquid separation process in the fields such as environmental protection.
Background technology
SO2It is the atmosphere pollution for causing the current priority control of the major reason of China's atmosphere pollution and China with dust
Object.Currently, mostly using wet processing greatly in field of environment protection, in wet processing flue gas desulfurization course, absorption tower is in operational process
In, it is also easy to produce " mist " that grain size is 10~60 microns, not only contains moisture, also dissolved with sulfuric acid, sulfate, SO2Deng to big compression ring
Border pollutes, while more serious corrosion is caused to exhaust tube and heat exchanger etc..Therefore, in wet desulfurizing process, purification
Gas has to demisting before leaving absorption tower.
Demister is the processing equipment that the fields such as chemical industry or environmental protection are used for gas-liquid separation.When the gas containing mist is with certain
Speed when passing through demister, can and demister internal structure bump against, and depend on the surface thereof.Demister internal structure surface
On mist, will be inside demister after weight reaches certain level by spreading and the effect of gravity can gradually be assembled
It is separated in structure.To realize gas-liquid separation.Demister is generally located at the top of absorption tower.When demister is in operational process
It is middle when causing resistance drop to increase to predetermined value because of fouling, it is necessary to start backwashing procedures and demister is rinsed, generally,
It is both needed to setting flooding nozzle in demister inlet end and exhaust end.Gas phase may be caused to lead to the serious entrainment of liquid phase at this time
Gas phase band liquid.
Class is can be divided into many types according to the purposes of demister, structure, such as mesh mist eliminator, collapser demister, eddy flow
Plate demister, electrostatic precipitator, venetian blind type demister and gravitational settling type demister etc..There are commonly mesh mist eliminator, herringbones
Plate demister, rotational flow plate defroster etc..Although mesh mist eliminator can detach general mist, mist cleaning, air-flow stream are required
Speed is smaller, and resistance drop is big, and service life is short, and equipment investment is big.Demister is generally used horizontally disposed at present, demister gas
Body flow direction is vertical with silk screen, and when gas velocity is relatively low, the mist inertia of entrainment is small, drifts in gas, cannot be collided with silk screen
It contacts and is removed, and due to being flowed in adverse current by separation drop and gas phase, gas is also easy to produce reentrainment to drop, to
Make the reduction of gas-liquid separation efficiency, and mesh mist eliminator is there is also easy blocking, the problems such as pressure drop is big.Blade type, herringbone
The baffle plate that direction is different, shape is different is installed inside demister, to form small runner, increases defogging effect, knot
Structure is more complex, and separating effect is bad.Rotational flow plate defroster is identical as gas flow by separation drop, is also easy to produce reentrainment, drop
Low demisting efficiency, and pressure drop is big, and energy consumption is higher.
The demister element that CN200410014713.X is introduced is made of baffle plate and flue gas flow field adjustment block, and baffle plate is fixed
In flue gas flow field adjustment block, the density and shape of baffle plate change according to the flow area variation of flow field parameter everywhere, from
And the flow area of air-flow in absorption tower is made to be evenly distributed.Still it does not break away from drop descent, gas-liquid counter current phenomenon,
It is also easy to produce reentrainment.
The demister that CN200920128824.1 is introduced is made of cooler, coarse defogging device and smart demister etc., coarse defogging
Device is corrugated sheet or demisting plate, and smart demister is steel wire, which changes traditional demister drop and airflow direction is inverse
The shortcomings that stream flowing, demisting efficiency is improved, but the demister structure is more complex, makes difficulty, and as a result of silk screen
Structure, demister pressure drop is larger, is also easier to block.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of efficient defogging equipments, by fluid in flow process
Multiple baffling, acceleration and shaving effect, realize drop and gas separation.The efficient defogging equipment of the present invention is simple in structure,
Pressure drop is small, less scaling, easy for installation, reduces entrainment, can effectively realize gas-liquid separation.
The efficient defogging equipment of the present invention, including several demisting components arranged side by side, each demisting component include rising gas
Pipe and outer barrel, outer barrel are arranged in the outside of riser, and on the same axis with riser；The riser is divided into an axial direction
Upper and lower two parts, top are divided into riser I, and lower part is divided into riser II, and riser II is fixed on tower tray, riser I and liter
Tracheae II is connected by bearing；Riser I top setting on cover plate, several seams are provided on the circumference of riser I, by
The riser I of nearly each item seam is provided circumferentially about blade；The contour line of leaf cross-section is made of four curves, is leading edge respectively
Line, rear line, upper limb line and lower edge line, wherein costa are located at the both ends of leaf cross-section contour line, rear line with rear line
It is connected with riser I；Upper limb line and lower edge line are between costa and rear line.Costa and rear line are circular arc line,
Upper limb line and lower edge line are one kind in circular arc line, parabola, B-spline curves or Bezier curve, preferably circular arc or Bezier
Curve, when upper limb line and lower edge line are Bezier curve, the Bezier curve at preferably five control points, i.e., 5 points 4 times
Bezier curve；The rotation direction of the blade is identical.
It is easy for installation in order to design, it is preferred to use the identical blade of shapes and sizes in the efficient defogging equipment of the present invention.
In the efficient defogging equipment of the present invention, the radius of circle where the costa of leaf cross-section is riser I radiuses
0.01~1 times, the radius of circle is identical as the outer diameter of riser I where rear line.The radius of circle where rear line is with riser I's
Outer diameter is identical.
In the efficient defogging equipment of the present invention, the height of the blade is h, and h is 1~1.3 times that item stitches height a, excellent
It is selected as 1.1~1.2 times of item seam height a；The length s of blade is 0.2-1 times of riser II diameters d, preferably 0.2-0.5
Times；The maximum width δ of blade is 0.02~0.5 times of length of blade s.On riser cross section, blade is outer with riser I's
Wall is fixedly connected, and lower edge line and the rear line intersection point of blade are A, and lower edge line and the costa intersection point of blade are B.Blade lower edge line
Angle with the riser radial direction for crossing point A is γ, and γ is generally 15 °~70 °, preferably 30 °~45 °；Blade lower edge line with
The angle crossed between the riser radial direction of point B is η, and η is generally 20 °~80 °, preferably 30 °~60 °.
In the efficient defogging equipment of the present invention, the item seam number on the riser I is identical as the number of blade, and item
Seam is corresponded with blade, item seam and blade generally setting 3 ~ 20, preferably 6-10.
In the efficient defogging equipment of the present invention, the height a of item seam is 20~600mm, preferably 100~300mm；Item
The width b of seam generally can be 10~200mm, preferably 20~100mm.The area that always cracks of the item seam is riser I horizontal
0.2~0.9 times of sectional area, preferably the 0.3~0.7 of riser I cross-sectional areas times.
In the efficient defogging equipment of the present invention, preferably the setting of the lower ends riser II is lower covers plate, and tower tray is with lower part
It is uniformly provided with several air admission holes on the circumference of riser II, air inlet deflector is set on the riser inner wall of air inlet position.It is described
Air admission hole generally setting 3 ~ 12, preferably 6-10；The cross sectional shape of air admission hole is rectangle, ellipse, circle, trapezoidal or half
The combination of one or more of circle etc., one or more of preferably rectangular, oval or round combination；Air admission hole it is total
Sectional area is 0.6 ~ 1.5 times of riser II sectional areas, preferably 0.8 ~ 1.2 times, and specific size is according to actual operating mode or design
Demand is determined by those skilled in the art；Two mid point of curve connect up and down in air admission hole and riser II outer wall intersections
The angle of the section for the riser outer wall that line is done and the air inlet deflector plane close to air admission hole side is θ, and θ is 10 ° ~ 60 °,
It is preferred that 20 ° ~ 35 °.The rotation direction of each air inlet deflector is identical as the rotation direction of blade, and the shape of air inlet deflector can be square
Shape, ellipse, circle, trapezoidal or one or more of semicircle etc. combination, it is preferably identical as the shape of air admission hole, into conductance
Flowing plate sectional area is 1.1 ~ 2 times of air admission hole sectional area, preferably 1.3 ~ 1.5 times.The lower capping plate（The bottoms riser II）
It is 60~200mm, preferably 80~120mm to have certain distance K, distance K away from tower tray.
In the efficient defogging equipment of the present invention, it is 60 that riser I blade distance from bottom tower trays, which have certain distance A, distance A,
~300mm, preferably 80~120mm.
In the efficient defogging equipment of the present invention, it is 20~200mm that there are certain distance C, distance C in bearing bottom with tower tray, excellent
It is selected as 40~80mm.
In the efficient defogging equipment of the present invention, riser II and tower tray airtight connection, the height of riser I is blade height
1.1 ~ 3 times of h, preferably 1.2 ~ 1.5 times.The diameter of riser I and riser II and the percent opening of tower tray can be according to actual
Operating mode or design requirement, are determined by those skilled in the art.
In the efficient defogging equipment of the present invention, the upper capping plate and riser I, lower capping plate and riser II can be with
Weld together or global formation；Blade is with riser I, air inlet deflector and riser II by being welded to connect.
In the efficient defogging equipment of the present invention, the outer barrel is preferably cylinder, and outer barrel diameter D is riser II diameters d
1.5-6 times, preferably 2-3 times.Upper edge the certain distance P, distance P that the upper edge of outer barrel is higher by riser I are blade height h's
1~6 times, preferably 2~4 times.The lower edge of outer barrel has a certain distance B apart from tower tray, and less than the lower edge of blade, outer barrel lower edge away from
The distance B of tower tray is 5~100mm, preferably 20~50mm.The overall height H of outer barrel is 2.5~10 times of blade height h, preferably
It is 3~5 times.
In the efficient defogging equipment of the present invention, the inner surface setting groove or protrusion of the outer barrel.Groove or protrusion with
The axis of outer barrel is parallel, or can form an angle with axis.The section of the groove or protrusion can be rectangle, triangle
The suitable shapes such as shape or circle.
In the efficient defogging equipment of the present invention, the inner surface of the outer barrel is preferably provided with cross sectional shape as shown in Figure 7
Groove, the section of the groove is made of a circular arc and straight line section；The wherein intersection point of circular arc and outer tube inner surface circumference
The tangent line of circular arc and circumference is done respectively, and the angle between tangent line is α, and α is 5 ° ~ 70 °, preferably 10 ° ~ 40 °；Circular arc and straightway
The tangent line of the circular arc done at intersection point and the angle of straightway are β, and β is 30 ° ~ 110 °, preferably 45 ° ~ 90 °.The depth of groove
Z, i.e. circular arc are 0.1 ~ 0.7 times of outer barrel wall thickness with the shortest distance on straightway intersection point to outer tube inner surface circumference, preferably
0.3 ~ 0.5 times；Arc length between the intersection point and straightway and the intersection point of outer tube inner surface circumference of circular arc and outer tube inner surface circumference is
The 1/80 ~ 1/6 of outer tube inner surface circumference.
In the efficient defogging equipment of the present invention, toothing or waveform can also be arranged in the lower ending opening of the outer barrel
Structure is dripped from the inner wall of outer barrel at continuous flow to be more conducive to the liquid isolated.
The junction of each component of efficient defogging equipment of the present invention ensures sealing, does not generate gas leak phenomenon.
The efficient defogging equipment of the present invention, when work, the gas of entrained drip is from the air admission hole of tower tray lower end along level side
To riser II is entered, gas phase flow direction is changed to tangential direction by radial direction after encountering air inlet deflector, is conducive to gas
It spirals and flows up along riser II inner walls, enhance eddy flow effect.Partial drop occurs with air inlet deflector in the process
Collision makes some droplets adhere on air inlet deflector and coalescence, the drop of attachment becomes larger, a part of larger drop
Its own generate gravity be more than gas climbing power and surface tension of liquid resultant force when, drop will be along air inlet deflector table
Face falls to be detached, that is, completes a gas-liquid separation；The larger drop of another part then continues to flow with gas,
It is flowed up along riser II and riser I inner wall disc spins.When the gas of entrained drip is flowed up along riser, encounter
Gas phase flow direction changes after capping plate, and horizontal or level of approximation direction is changed to by ascent direction, and droplet is due to used
Property effect collide with upper capping plate, complete another gas-liquid separation, while having part droplet coalescence again as larger
Drop, and continue to flow with gas.The gas of entrained drip is stitched along horizontal or level of approximation direction by the item on riser I,
Since item seam total sectional area is less than riser sectional area, speed further increases after so that the gas of entrained drip is stitched by item.Folder
Guttiferous gas collides after item seam outflow with blade, and gas phase flow direction changes again, and what is be not removed is small
Drop is captured at blade by identical effect, completes gas-liquid separation again.And since blade profile curve is light
Sliding easement curve, the directional velocity after gas is hit with any point on blade are different so that gas is in riser and outside
It is uniformly distributed in section between cylinder, avoids the generation of bias current, also reduce impact force of the gas to blade.Gas continues to flow
And collide with outer tube inner wall, another changes the flow direction of gas, and gas is changed to by more dispersed flow direction
It is flowed along the circumferencial direction of outer tube inner wall.Since the gas velocity of entrained drip is larger, and along opening up reeded outer barrel
Inner wall rotation flows up, therefore will produce obvious shaving effect.The shaving effect refers to the height of entrained drip
When fast gas is flowed up along outer tube inner wall rotation, drop is constantly thrown toward outer under the action of inertia force, and drop enters recessed
The slot and arc section in groove moves, since angle α is 5 ° ~ 70 °, can make drop continue on groove arc surface do it is flat
It moves slidingly, aggregation is contacted between drop and is become larger, straightway is hindered until encountering, and assembles the drop to become larger and straightway wall surface
It is strong to hit, and be attached on the straightway of outer tube inner wall groove, drop continues to assemble and become larger, and then along outer tube inner wall fair current
Under and；And gas then continues that high speed is kept to flow up along outer tube inner wall rotation, realizes gas-liquid separation again, and reduce
Entrainment.And the gas of entrained drip hits blade after item seam outflow, under the impetus of gas, riser I passes through
Connection bearing rotates relative to riser II, since blade profile curve is smooth transition curve, when riser I is rotated,
Air drag is relatively low, strengthens the rotating effect that bearing drives riser I.The rotation direction phase of the rotation direction of riser I and blade
Instead, the gas after blade acts on is made continuously to hit outer tube inner wall everywhere, without being merely to hit outer tube inner wall fixed position,
Shaving effect is strengthened, while being more favorable to gas and being uniformly distributed in outer barrel.It is imitated by above-mentioned baffling, acceleration and shaving
It answers, fluid is made to realize the separation of drop and gas in flow process.
Application of the efficient defogging equipment of the present invention in the absorption tower using wet desulfurizing process, generally enters riser
The gas velocity of II is 3-20m/s, and the gas velocity from item seam outflow is 10-40m/s, and the gas velocity from item seam outflow is into riser II's
1.5 ~ 3 times of gas velocity.
Compared with prior art, efficient defogging equipment of the invention has the following advantages：
1, several air inlets are arranged in the lower capping plate of the lower ends riser II setting and several air admission holes, the riser II inner walls of air inlet position
Deflector, after so that gas is entered riser II in the horizontal direction, encountering air inlet deflector makes gas phase flow direction by radial direction
It is changed to tangential direction, is conducive to gas and spirals and flow up along riser II and riser I inner walls, enhance eddy flow effect.
2, it is connected by bearing between riser I and riser II, riser I rotates under the influence of gas, rises
The rotation direction of tracheae I is oppositely oriented with outlet rectification channel, and the gas after blade acts on is made continuously to hit outer barrel circumferential direction
Inner wall everywhere, without being merely to hit outer tube inner wall fixed position, is more advantageous to gas and is uniformly distributed in outer barrel, strengthen and scrape
Face effect, and since blade profile curve is smooth transition curve, when riser I is rotated, air drag is relatively low, strengthens bearing
Drive the rotating effect of riser I.
3, since the costa of blade and rear line are circular arc, parabola, B-spline curves or Bezier curve, curve mistake
Cross smooth, gas and directional velocity after any point is hit on blade are different so that gas riser and outer barrel it
Between be uniformly distributed in section, avoid the generation of bias current, also reduce impact force of the gas to blade.
4, the section of cylinder inner surface groove is made of a circular arc and straight line section, the high-speed gas edge of entrained drip
When outer tube inner wall rotation flows up, drop is constantly thrown toward outer under the action of inertia force, and drop enters groove and along recessed
Arc section movement in slot can make the arc surface that drop continues on groove do smooth fortune since angle α is 5 ° ~ 70 °
It is dynamic, until encounter straightway it is hindered after go downstream along outer tube inner wall, and exist without dead zone.
5, by multistage demisting, efficiently achieve the effect that demisting, effectively remove the smaller liquid of the grain size carried secretly in gas
Drop, demisting efficiency is high, reduces the harm to environment, plays the role of environmental protection.
6, gas flow uniform, flow resistance is small, and resistance reduces.
7, simple in structure, it is easy to make, it is not easy to plug and fouling, without backwash.
8, water-saving result is good, and the moisture removed from the gas of entrained drip can reduce water consumption with recycling.
Description of the drawings
Fig. 1 is the structural schematic diagram of the lower capping plate of efficient defogging equipment setting of the present invention, air admission hole and air inlet deflector.
Fig. 2 is the structural representation that lower capping plate, air admission hole and air inlet deflector are not arranged for the efficient defogging equipment of the present invention
Figure.
Fig. 3 is the structural schematic diagram of riser I, blade and outer barrel section.
Fig. 4 is leaf cross-section contour line structural schematic diagram.
Fig. 5 is blade construction schematic diagram.
Fig. 6 is blade and riser I connection diagrams.
Fig. 7 is that section is the groove schematic diagram that circular arc and straightway are constituted.
Fig. 8 is the schematic cross-section of air admission hole and air inlet deflector.
In figure respectively label for：1- tower trays；2- riseies II；3- bearings；4- riseies I；5- items stitch；6- blades；It is sealed on 7-
Cover board；8- grooves or protrusion；9- outer barrels；10- costas；11- rear lines；12- upper limb lines；13- lower edge lines；14- air admission holes；
Plate is covered under 15-；16- air inlet deflectors.
Specific implementation mode
The efficient defogging equipment of the present invention is described in further detail with reference to the accompanying drawings and examples.
The efficient defogging equipment of the present invention, including several demisting components arranged side by side, each demisting component include rising gas
Pipe and outer barrel 9, outer barrel 9 are arranged in the outside of riser, and on the same axis with riser；The riser divides in an axial direction
For upper and lower two parts, top is divided into riser I4, and lower part is divided into riser II2, and riser II2 is fixed on tower tray 1, riser
I4 is connect with riser II2 by bearing 3；Plate 7 is covered in the top setting of riser I4, if being provided on the circumference of riser I4
Dry item seam 5 has blade 6 the riser I4 close to each item seam 5 is provided circumferentially about；The contour line of 6 cross section of blade is by four songs
Line is constituted, and is that costa 10, rear line 11, upper limb line 12 and lower edge line 13, wherein costa 10 are located at rear line 11 respectively
The both ends of 6 cross-sectional profiles line of blade, rear line 11 are connected with riser I4；Upper limb line 12 is located at costa 10 with lower edge line 13
Between rear line 11.Costa 10 is circular arc line with rear line 11, and upper limb line 12 and lower edge line 13 are circular arc line, parabolic
One kind in line, B-spline curves or Bezier curve, preferably circular arc or Bezier curve, upper limb line 12 are with lower edge line 13
When Bezier curve, the Bezier curve at preferably five control points, i.e. 5 points 4 Bezier curves；The blade 6
Rotation direction is identical.
It is easy for installation in order to design, it is preferred to use the identical blade of shapes and sizes in the efficient defogging equipment of the present invention
6。
In the efficient defogging equipment of the present invention, the radius of circle is riser I radiuses where the costa 10 of 6 cross section of blade
0.01~1 times, the radius of circle is identical as the outer diameter of riser I4 where rear line 11.
In the efficient defogging equipment of the present invention, the height of the blade 6 is h, and h is 1~1.3 times that item stitches 5 height a,
Preferably 1.1~1.2 times of 5 height a of item seam；The length s of blade 6 is 0.2-1 times of riser II2 diameters d, preferably 0.2-
0.5 times；The maximum width δ of blade 6 is 0.02~0.5 times of length of blade s.On riser cross section, blade 6 and riser
The outer wall of I4 is fixedly connected, and lower edge line 13 and 11 intersection point of rear line of blade 6 are A, and lower edge line 13 and the costa 10 of blade 6 are handed over
Point is B.6 lower edge line 13 of blade and the angle for the riser radial direction for crossing point A are γ, and γ is generally 15 °~70 °, preferably 30 °
~45 °；Angle between 6 lower edge line 13 of blade and the riser radial direction for crossing point B is η, and η is generally 20 °~80 °, preferably
30 °~60 °.
In the efficient defogging equipment of the present invention, item 5 numbers of seam on the riser I4 are identical as the number of blade 6,
And item seam 5 is corresponded with blade 6, item seam 5 and the generally setting 3 ~ 20 of blade 6, preferably 6-10.
In the efficient defogging equipment of the present invention, the height a of item seam 5 is 20~600mm, preferably 100~300mm；
The width b of item seam 5 generally can be 10~200mm, preferably 20~100mm.The area that always cracks of the item seam 5, for a liter gas
0.2~0.9 times of pipe I4 cross-sectional areas, preferably the 0.3~0.7 of riser I4 cross-sectional areas times.
In the efficient defogging equipment of the present invention, preferably the setting of the lower ends riser II2 is lower covers plate 15, and tower tray 1 is with lower part
Several air admission holes 14 are uniformly provided on the circumference of the riser II2 divided, are arranged into conductance on the riser inner wall at air admission hole 14
Flowing plate 16.The air admission hole 14 generally setting 3 ~ 12, preferably 6-10；The cross sectional shape of air admission hole 14 is rectangle, ellipse
Shape, circle, trapezoidal or one or more of semicircle etc. combination, one kind or several in preferably rectangular, oval or circle
Kind combination；The total sectional area of air admission hole 14 is 0.6 ~ 1.5 times of riser II2 sectional areas, preferably 0.8 ~ 1.2 times, specific size
According to actual operating mode or design requirement, determined by those skilled in the art；Air admission hole 14 is mutually passed through with riser II2 outer walls
The air inlet deflector of the section for the riser outer wall that two mid point of curve lines are done up and down in line and close 14 side of air admission hole
The angle of plane is θ, and θ is 10 ° ~ 60 °, preferably 20 ° ~ 35 °.The rotation direction of the rotation direction and blade 6 of each air inlet deflector 16
Identical, the shape of air inlet deflector 16 can be rectangle, ellipse, circle, trapezoidal or one or more of semicircle etc. group
It closes, preferably identical as the shape of air admission hole 14,16 sectional area of air inlet deflector is 1.1 ~ 2 times of 14 sectional area of air admission hole, preferably
1.3 ~ 1.5 times.The lower capping plate 15（The bottoms riser II2）It is 60~200mm to have certain distance K, distance K away from tower tray 1,
Preferably 80~120mm.
In the efficient defogging equipment of the present invention, 6 distance from bottom tower tray 1 of riser I4 blades has certain distance A, distance A
For 60~300mm, preferably 80~120mm.
In the efficient defogging equipment of the present invention, it is 20~200mm that there are certain distance C, distance C in 3 bottom of bearing with tower tray 1,
Preferably 40~80mm.
In the efficient defogging equipment of the present invention, riser II2 and 1 airtight connection of tower tray, the height of riser I4 is blade 6
1.1 ~ 3 times of height h, preferably 1.2 ~ 1.5 times.The diameter of riser I4 and riser II2 and the percent opening of tower tray 1 can bases
Actual operating mode or design requirement, are determined by those skilled in the art.
In the efficient defogging equipment of the present invention, the upper capping plate 7 and riser I4, lower capping plate 15 and riser
II2 can weld together or global formation；Blade 6 passes through the company of welding with riser I4, air inlet deflector and riser II2
It connects.
In the efficient defogging equipment of the present invention, the outer barrel 9 is preferably cylinder, and 9 diameter D of outer barrel is that riser II2 is straight
1.5-6 times of diameter d, preferably 2-3 times.Upper edge the certain distance P, distance P that the upper edge of outer barrel 9 is higher by riser I4 are blade 6
1~6 times of height h, preferably 2~4 times.The lower edge of outer barrel 9 has certain distance B apart from tower tray 1, and is less than the lower edge of blade 6,
Distance B of 9 lower edge of outer barrel away from tower tray 1 is 5~100mm, preferably 20~50mm.The overall height H of outer barrel 9 is 6 height h's of blade
2.5~10 times, preferably 3~5 times.
In the efficient defogging equipment of the present invention, the inner surface setting groove or protrusion 8 of the outer barrel 9.Groove or protrusion 8
It is parallel with the axis of outer barrel 9, or can form an angle with axis.The section of the groove or protrusion 8 can be rectangle,
The suitable shapes such as triangle or circle.
In the efficient defogging equipment of the present invention, the inner surface of the outer barrel 9 is preferably provided with cross sectional shape as shown in Figure 7
Groove, the section of the groove is made of a circular arc and straight line section；The wherein intersection point of circular arc and 9 inner surface circumference of outer barrel
The tangent line of circular arc and circumference is done respectively, and the angle between tangent line is α, and α is 5 ° ~ 70 °, preferably 10 ° ~ 40 °；Circular arc and straightway
The tangent line of the circular arc done at intersection point and the angle of straightway are β, and β is 30 ° ~ 110 °, preferably 45 ° ~ 90 °.The depth of groove
Z, i.e. circular arc are 0.1 ~ 0.7 times of 9 wall thickness of outer barrel with the shortest distance on straightway intersection point to 9 inner surface circumference of outer barrel, preferably
It is 0.3 ~ 0.5 times；Arc between the intersection point of the 9 inner surface circumference of intersection point and straightway and outer barrel of 9 inner surface circumference of circular arc and outer barrel
The 1/80 ~ 1/6 of 9 inner surface circumference of a length of outer barrel.
In the efficient defogging equipment of the present invention, toothing or wave can also be arranged in the lower ending opening of the outer barrel 9
Shape structure is dripped from the inner wall of outer barrel 9 at continuous flow to be more conducive to the liquid isolated.
Embodiment
Certain wet scrubber tower purifying smoke 150000Nm3/ h, wherein aobvious water concentration is 10~18g/Nm3, through demisting of the present invention
Water concentration is shown in final vacuum is less than 0.6g/Nm3, demisting efficiency is more than 94%.
Claims (16)
1. a kind of efficient defogging equipment, it is characterised in that：Including several demisting components arranged side by side, each demisting component includes
Riser and outer barrel, outer barrel are arranged in the outside of riser, and on the same axis with riser；The riser is in an axial direction
It is divide into upper part and lower part, top is divided into riser I, and lower part is divided into riser II, and riser II is fixed on tower tray, riser I
It is connect by bearing with riser II；Plate is covered in the top setting of riser I, several seams are provided on the circumference of riser I,
Provided circumferentially about there is blade in the riser I close to each item seam；The contour line of leaf cross-section is made of four curves, is respectively
Costa, rear line, upper limb line and lower edge line, wherein costa are located at the both ends of leaf cross-section contour line with rear line, after
Edge line is connected with riser I；Upper limb line and lower edge line are between costa and rear line.Costa and rear line are circular arc
Line, upper limb line and lower edge line are one kind in circular arc line, parabola, B-spline curves or Bezier curve；The rotation of the blade
To identical.
2. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：Upper limb line and lower edge line are circular arc or Bezier
Curve.
3. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：Half of circle where the costa of leaf cross-section
Diameter is 0.01~1 times of riser I radiuses, and the radius of circle is identical as the outer diameter of riser I where rear line.
4. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：The height of the blade is h, and h stitches for item
1~1.3 times of height a；The length s of blade is 0.2~1 times of riser II diameters d；The maximum width δ of blade is that blade is long
Spend s 0.02~0.5 times.
5. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：The lower edge line of blade is A with rear line intersection point,
The lower edge line of blade and costa intersection point are B, and it is 15 ° that the angle of blade lower edge line and the riser radial direction for crossing point A, which is γ,
~70 °, it is 20 °~80 ° that the angle between blade lower edge line and the riser radial direction for crossing point B, which is η,.
6. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：On the riser I item seam number with
The number of blade is identical, and item seam is corresponded with blade, and item seam is arranged 3 ~ 20 with blade.
7. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：The area that always cracks of the item seam, to rise
0.2~0.9 times of tracheae I cross-sectional areas.
8. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：The lower capping plate of the lower ends riser II setting, and
Tower tray to be uniformly provided with several air admission holes on the circumference of the riser II of lower part, be arranged on the riser inner wall of air inlet position into
Conductance flowing plate.
9. efficient defogging equipment according to claim 8, it is characterised in that：The cross sectional shape of air admission hole is rectangle, ellipse
It is shape, circle, trapezoidal or one or more of semicircle；The total sectional area of air admission hole is the 0.6 ~ 1.5 of riser II sectional areas
Times；The section of riser outer wall that two mid point of curve lines are done up and down in air admission hole and riser II outer wall intersections with lean on
It is 10 ° ~ 60 ° that the angle of the air inlet deflector plane of nearly air admission hole side, which is θ,.
10. efficient defogging equipment according to claim 8, it is characterised in that：The rotation direction of each air inlet deflector with
The rotation direction of blade is identical, and air inlet deflector sectional area is 1.1 ~ 2 times of air admission hole sectional area.
11. efficient defogging equipment according to claim 8, it is characterised in that：The lower capping plate has centainly away from tower tray
Distance K, distance K are 60~200mm.
12. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：Riser I blade distance from bottom tower trays have
Certain distance A, distance A are 60~300mm.
13. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：There is certain distance C in bearing bottom with tower tray,
Distance C is 20~200mm.
14. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：The height of riser I is blade height h
1.1 ~ 3 times.
15. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：The outer barrel is cylinder, outer barrel diameter D
It it is 1.5-6 times of riser II diameters d, it is blade height that the upper edge of outer barrel, which is higher by upper edge the certain distance P, distance P of riser I,
The lower edge of 1~6 times of h, outer barrel has certain distance B apart from tower tray, and less than the lower edge of blade, distance of the outer barrel lower edge away from tower tray
B is 5~100mm, and the overall height H of outer barrel is 2.5~10 times, preferably 3~5 times of blade height h.
16. efficient defogging equipment described in accordance with the claim 1, it is characterised in that：Groove is arranged in the inner surface of the outer barrel,
The groove section shape is made of a circular arc and straight line section, and the intersection point of wherein circular arc and outer tube inner surface circumference is done respectively
The tangent line of circular arc and circumference, the angle between tangent line are α, and α is 5 ° ~ 70 °, and the circular arc done at circular arc and straightway intersection point is cut
The angle of line and straightway is β, and β is 30 ° ~ 110 °, and the depth Z of groove, i.e. circular arc justify with straightway intersection point to outer tube inner surface
The shortest distance on week is 0.1 ~ 0.7 times of outer barrel wall thickness, the intersection point and straightway and outer barrel of circular arc and outer tube inner surface circumference
Arc length between the intersection point of inner surface circumference is the 1/80 ~ 1/6 of outer tube inner surface circumference.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109121.3A CN108499227B (en) | 2017-02-27 | 2017-02-27 | High-efficient defogging equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109121.3A CN108499227B (en) | 2017-02-27 | 2017-02-27 | High-efficient defogging equipment |
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| CN108499227A true CN108499227A (en) | 2018-09-07 |
| CN108499227B CN108499227B (en) | 2020-01-10 |
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| CN201710109121.3A Active CN108499227B (en) | 2017-02-27 | 2017-02-27 | High-efficient defogging equipment |
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| CN110227299A (en) * | 2019-06-27 | 2019-09-13 | 中国科学院过程工程研究所 | A kind of blade gas liquid/gas separator |
| CN111265939A (en) * | 2020-01-21 | 2020-06-12 | 张洋洋 | High-efficient vapour and liquid separator of desulfurization system |
| CN112973359A (en) * | 2021-03-18 | 2021-06-18 | 中国石油大学(北京) | Sectional liquid discharge type combined coalescent filter element |
| CN113188381A (en) * | 2021-04-02 | 2021-07-30 | 西安近代化学研究所 | Mechanical fusion device for improving floating capacity by increasing bubble volume |
| CN114425209A (en) * | 2020-09-17 | 2022-05-03 | 中国石油化工股份有限公司 | Scale pan and device for trapping solid matter in gas |
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| CN108499227B (en) | 2020-01-10 |
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Effective date of registration: 20230819 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |
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