CN207401269U - Dedusting demister and absorption tower - Google Patents
Dedusting demister and absorption tower Download PDFInfo
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- CN207401269U CN207401269U CN201721257131.3U CN201721257131U CN207401269U CN 207401269 U CN207401269 U CN 207401269U CN 201721257131 U CN201721257131 U CN 201721257131U CN 207401269 U CN207401269 U CN 207401269U
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Abstract
The utility model embodiment provides a kind of dedusting demister and absorption tower, belongs to flue gases purification field.Dedusting demister includes dedusting demisting unit, and dedusting demisting unit includes：Cylinder, cylinder have exhaust gases passes；Eddy flow, eddy flow are arranged in exhaust gases passes, and eddy flow attached bag includes multiple swirl vanes, and the reducing-flow structure that can stop at least part dust and/or drop is connected at least one swirl vane.The dedusting demister can purifying smoke, ensure the stability of purification efficiency.
Description
Technical field
The utility model is related to filed of flue gas purification more particularly to a kind of dedusting demister and absorption towers.
Background technology
At present, flue gas or industrial tail gas SO2 control emissions aspect, it is common to use ripe hollow-spraying-tower limestone wet-process takes off
Sulphur technology.Increase some enhancing devices on it again using this technology, can realize more satisfactory treatment effect.But through sky
After tower wet sprinkling washing, purifying desulfurization, flue gas can carry the fine droplet that spray generates in the process, it is impossible to meet discharge standard,
Need to demister be additionally installed to be removed.
But either Flat defroster or ridge type demister in the prior art, dedusting defogging effect is unsatisfactory,
By existing dedusting demister treated the general dust emission concentration of flue gas in 10mg/N.m3 or so.It also deposits in the prior art
The dust emission concentration of flue gas can reach after a kind of sub- tube type dust removing demister of the higher Multi-stage spiral of removal efficiency, processing
To≤5mg/N.m3.But the work efficiency of this tube type dust removing demister by unit load influenced greatly, when unit flue gas flow rate compared with
When fast, since flue gas carries the capability improving of dust and drop, the problem of dedusting defogging effect can be caused bad so that efficiency is difficult
With stabilization.
Another dedusting demister pattern be after the demister of wet desulphurization device install additional Wet type electric dust-removing device into
Row deep purifying, such clean-up effect are more satisfactory.But wet electrical dust precipitator equipment is huge, if being built on former desulfurizing tower top
If need to generally carry out expanding and increase to absorption tower, retrofit work amount is very big, and increase load is larger, need to absorb tower foundation to original
It is reinforced.If being built outside tower, need larger construction space big, and the multiple deflecting of flue makes resistance increase many,
Transformation difficulty is big on constructed item, and initial cost is high, and maintenance workload is big, and operation energy consumption is high.
Utility model content
In view of this, the utility model provides a kind of dedusting demister and absorption tower, to solve flue gas in the prior art
The problem for the treatment of effect is bad.
The utility model embodiment, which provides a kind of dedusting demister, includes dedusting demisting unit, dedusting demisting unit bag
It includes：Cylinder, cylinder have exhaust gases passes；Eddy flow, eddy flow are arranged in exhaust gases passes, and eddy flow attached bag includes multiple eddy flow leaves
Piece is connected with the reducing-flow structure that can stop at least part dust and/or drop at least one swirl vane.
Optionally, each swirl vane has edge and blade lower edge on blade, and reducing-flow structure is arranged on the blade of swirl vane
Upper edge.
Optionally, reducing-flow structure includes the first choked flow bank, and the first choked flow bank is connected on the blade of swirl vane along upper, and
The lower section extension on edge on blade.
Optionally, reducing-flow structure further includes the second choked flow bank, and the second choked flow bank passes through linkage section and the blade of swirl vane
Upper edge connection, and the second choked flow bank is located at the top of swirl vane.
Optionally, each swirl vane has root of blade and blade tip, along root of blade to the direction of blade tip, until
A few swirl vane and the angle of cylinder cross section gradually increase or reduce.
Optionally, along root of blade to the direction of blade tip, at least one swirl vane and the angle of cylinder cross section
Gradually increase.
Optionally, each swirl vane has edge and blade lower edge on blade, along blade along the direction for arriving blade lower edge, until
A few swirl vane and the angle of cylinder cross section gradually increase or reduce.
Optionally, eddy flow further includes cyclone cover cylinder, and swirl vane is mounted in cyclone cover cylinder, and the blade of swirl vane
End is connected with cyclone cover cylinder.
Optionally, dirt opening is provided with out on cyclone cover cylinder, goes out dirt opening through cyclone cover cylinder, the blade of each swirl vane
Dirt opening is correspondingly arranged on out below end.
Optionally, there is gap between the outside wall surface of cyclone cover cylinder and the internal face of cylinder；And/or cyclone cover cylinder is outer
Connecting rod is provided on wall, cyclone cover cylinder is connected by connecting rod with cylinder.
Optionally, eddy flow further includes central tube, and the root of blade of swirl vane is connected on central tube.
Optionally, dedusting demisting unit is multiple, and along the radial direction close-packed arrays of cylinder；And/or dedusting demisting unit is
It is multiple, and be sequentially connected along the axial direction of cylinder.
Another aspect according to the present utility model provides a kind of absorption tower, including absorbing tower shell and dedusting demisting dress
It puts, dedusting demister is above-mentioned dedusting demister.
By above technical scheme as it can be seen that the dedusting demister cylinder of the utility model embodiment is for gathering dust, in
Exhaust gases passes are used to pass through for flue gas.Eddy flow is arranged in exhaust gases passes so that during flue gas is flowed along exhaust gases passes,
By eddy flow so as to be moved upwards by conversion of motion straight up for rotation, under the influence of centrifugal force, the dust in flue gas
Particle and droplet are thrown on the inner wall of cylinder, so as to fulfill the disengaging of dust and/or drop etc. and flue gas, realize that dedusting removes
Mist function.Swirl vane in eddy flow can make flue gas become swirling eddy by the generation of the eddy flow period of the day from 11 p.m. to 1 a.m, and reducing-flow structure is used
In stopping that dust in flue gas and drop continue with flow of flue gas, so as to fulfill dedusting demisting.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments described in the utility model embodiment, it for those of ordinary skill in the art, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the schematic cross-sectional view on the absorption tower of the embodiment of the utility model；
Fig. 2 is the schematic cross-sectional view of the dedusting demisting unit of the lower end water receiving pipe of the embodiment of the utility model；
Fig. 3 is the schematic cross-sectional view of the dedusting demisting unit of the upper end water receiving pipe of the embodiment of the utility model；
Fig. 4 is the partial enlargement structural representation of the dedusting demisting unit of the circular cylinder body of the embodiment of the utility model；
Fig. 5 is the partial enlargement structural representation of the dedusting demisting unit of the regular hexagon cylinder of the embodiment of the utility model
Figure；
Fig. 6 cuts open for the transverse direction of the dedusting demisting unit of the circular cylinder body and circular cyclone cover cylinder of the embodiment of the utility model
Depending on structure diagram；
Fig. 7 is the regular hexagon cylinder of embodiment of the utility model and the dedusting demisting unit of regular hexagon cyclone cover cylinder
Horizontal schematic cross-sectional view；
Fig. 8 be the utility model embodiment regular hexagon cylinder and circular cyclone cover cylinder dedusting demisting unit horizontal stroke
To schematic cross-sectional view；
Fig. 9 is the horizontal schematic cross-sectional view of eddy flow of the circular cyclone cover cylinder of the embodiment of the utility model；
Figure 10 is the horizontal sectional structure signal of eddy flow of the regular hexagon cyclone cover cylinder of the embodiment of the utility model
Figure；
Figure 11 is the half section structure diagram of eddy flow of the embodiment of the utility model；
Figure 12 is the dimensional structure diagram of eddy flow of the circular cyclone cover cylinder of the embodiment of the utility model；
Figure 13 is the dimensional structure diagram of eddy flow of the regular hexagon cyclone cover cylinder of the embodiment of the utility model；
Figure 14 is the dimensional structure diagram of the board-like swirl vane of the embodiment of the utility model；
Figure 15 is the three-dimensional knot at the first visual angle of the swirl vane with the first choked flow bank of the embodiment of the utility model
Structure schematic diagram；
Figure 16 is the three-dimensional knot at the second visual angle of the swirl vane with the first choked flow bank of the embodiment of the utility model
Structure schematic diagram；
Figure 17 is the dimensional structure diagram of the swirl vane with the second choked flow bank of the embodiment of the utility model；
Figure 18 is the solid of the swirl vane with the first choked flow bank and the second choked flow bank of the embodiment of the utility model
Structure diagram；
Figure 19 is longitudinal schematic cross-sectional view of the swirl vane of the embodiment of the utility model；
Figure 20 is the horizontal schematic cross-sectional view of the swirl vane of the embodiment of the utility model.
Description of the drawings：
1st, tower shell is absorbed；2nd, adsorption tower smoke import；3rd, adsorption tower smoke exports；4th, braced frame；5th, dedusting demisting
Unit；51st, cylinder；52nd, eddy flow；521st, swirl vane；5211st, root of blade；5212nd, blade tip；5213rd, on blade
Edge；5214th, blade lower edge；5215th, the first choked flow bank；5216th, the second choked flow bank；5217th, linkage section；522nd, cyclone cover cylinder；
5222nd, dirt opening is gone out；523rd, connecting rod；524th, central tube；53rd, wash tub pipe；54th, flooding nozzle；6th, main wash tub pipe；7th, connect
Water pipe；9th, sealing device.
Specific embodiment
Certainly, implement any technical solution of the utility model embodiment must be not necessarily required to reach simultaneously more than it is all
Advantage.
In order to which those skilled in the art is made to more fully understand the technical scheme in the embodiment of the utility model, below in conjunction with this
Attached drawing in utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shows
So, described embodiment is only the utility model embodiment part of the embodiment, instead of all the embodiments.Based on this reality
With the embodiment in new embodiment, those of ordinary skill in the art's all other embodiments obtained should all belong to this
The scope of utility model embodiment protection.
Further illustrate that the utility model embodiment implements with reference to the utility model embodiment attached drawing.
As shown in Fig. 2-20, embodiment according to the present utility model, dedusting demister includes dedusting demisting unit 5, removes
Dirt demisting unit 5 includes cylinder 51 and eddy flow 52.Cylinder 51 has exhaust gases passes.Eddy flow 52 is arranged in exhaust gases passes,
Eddy flow 52 includes multiple swirl vanes 521, be connected at least one swirl vane 521 can stop at least part dust and/
Or the reducing-flow structure of drop.
Cylinder 51 for gathering dust, in exhaust gases passes for passing through for flue gas.Eddy flow 52 is arranged in exhaust gases passes,
So that during flue gas is flowed along exhaust gases passes, by eddy flow 52 so as to be the upward fortune of rotation by conversion of motion straight up
Dynamic, under the influence of centrifugal force, dust particles and droplet in flue gas are thrown on the inner wall of cylinder 51, so as to fulfill dust
And/or the disengaging of drop etc. and flue gas, realize dedusting defrosting function.Swirl vane 521 in eddy flow 52 can make flue gas exist
Become swirling eddy by being generated during eddy flow 52, the dust and drop that reducing-flow structure is used to stop in flue gas continue with flue gas stream
It is dynamic, so as to fulfill dedusting demisting.During flue gas flows in cylinder 51, when passing through reducing-flow structure, at least part of powder
Dirt and/or drop can be stopped by reducing-flow structure, prevent it from continuing to flow.
As long as the stop of dust and/or drop can be realized with swirl vane 521 with angle for reducing-flow structure.Here tool
There is the extending direction that angle refers to reducing-flow structure not parallel in the tangent line of the link position of swirl vane 521 with it.
As shown in Figure 15-Figure 18, each swirl vane 521 have on blade along under 5213 and blade along 5214, reducing-flow structure
It is arranged on the blade of at least one swirl vane 521 along 5213.
Optionally, as shown in Figure 15 and Figure 16, reducing-flow structure includes the first choked flow bank 5215, and the first choked flow bank 5215 connects
On the blade of swirl vane 521 along 5213, and extend on blade along 5213 lower section.So when flue gas passes through with the
During the swirl vane 521 of one choked flow bank 5215, it is subject to the first choked flow bank 5215 and swirl vane 521 barrier effect of itself, one
The surface of part dust and drop along swirl vane 521 is moved to blade tip 5212, and is reached by going out dirt opening 5222
The inner wall of cylinder 51 departs from flue gas.
Optionally, as shown in figure 17, reducing-flow structure further includes the second choked flow bank 5216, and the second choked flow bank 5216 passes through connection
Section 5217 is connected on the blade of swirl vane 521 along 5213, and the second choked flow bank 5216 is located at the top of swirl vane 521.
Second choked flow bank 5216 is similar with the effect of the first choked flow bank 5215, be all prevent flue gas in dust and drop continue with flue gas
It is mobile.Swirl vane 521 can only set the first choked flow bank 5215 that can also only set the second choked flow bank 5216, can also be simultaneously
It sets, as shown in figure 18.
When dedusting demisting unit 5 has multiple eddy flows 52, the swirl vane of one or several eddy flow 52 can be made
Reducing-flow structure is set on 521, and the swirl vane of remaining eddy flow 52 is not provided with reducing-flow structure.Optionally, close to exhanst gas outlet
The swirl vane 521 of eddy flow 52 at place sets reducing-flow structure, this is because the powder being mingled in the flue gas of smoke outlet
The lighter in weight of dirt and drop, easily as flue gas moves, by setting reducing-flow structure, dust that these can be prevented lighter and
Drop continues to move to, and improves dedusting defogging effect.The quantity of eddy flow 52 with reducing-flow structure can determine as needed.Example
Such as, if desired ensure that the flow velocity of exhanst gas outlet when dedusting demisting unit 5 works meets certain value, then can suitably be reduced with resistance
The quantity of eddy flow 52 of flow structure this is because reducing-flow structure can generate resistance for flow of flue gas to a certain extent, reduces
Flue gas flow rate.If exhanst gas outlet flow rates demand is not high, in order to promote dedusting defogging effect, then can suitably increase with choked flow knot
The quantity of eddy flow 52 of structure.
As shown in Figures 2 to 4, in the present embodiment, dedusting demisting unit 5 further includes wash tub pipe 53, wash tub pipe 53
It is arranged at the center of cylinder 51, is arranged concentrically with cylinder 51, and along the axially extending of cylinder 51.It so sets and causes, same
On one cross section, wash tub pipe 53 is equal or close with the distance everywhere of the inner wall of cylinder 51, and can be equably to cylinder
51 inner wall is rinsed, and makes to be attached to dust and drop of the inner wall of cylinder 51 etc. from inner wall disengaging, complete so as to guarantee
Prevent to face the encrustation of cylinder 51.
As shown in Fig. 2, wash tub pipe 53 can be connected by being connected to the water receiving pipe 7 of lower end with external water source.Flushing water
The length of pipe 53 can be equal to or less than the length of cylinder 51.As shown in figure 3, wash tub pipe 53 can also be by being connected to upper end
Water receiving pipe 7 be connected with external water source.
Optionally, in the present embodiment, dedusting demisting unit 5 further includes at least one flooding nozzle 54, flooding nozzle 54
It is arranged on wash tub pipe 53.Wash tub pipe 53 is rinsed the inner wall of cylinder 51 by 54 water outlet of flooding nozzle.Rinse spray
Mouth 54 can realize multi-direction water outlet, so as to ensure flushing effect.Certainly, in other embodiments, it is convenient to omit flooding nozzle
54, the perforate realization water outlet flushing directly on wash tub pipe 53.Flooding nozzle 54 can be any appropriate structure, as long as ensureing
Water outlet and cylinder 51 can be rinsed.
Optionally, flooding nozzle 54 is multiple, and along wash tub pipe 53 length direction (axial direction of cylinder 51) successively between
Every setting, to guarantee to rinse cylinder 51 comprehensively.The particular number of flooding nozzle 54, two neighboring flooding nozzle 54
Between interval, the distribution mode etc. of flooding nozzle 54 can determine specifically as needed.For example, flooding nozzle 54 can rush
53 first-class interval setting of wash water pipe, can also according to the aggregation situation of dust on cylinder 51 and drop, dust and drop etc. compared with
Make the spacing between flooding nozzle 54 smaller for intensive position.
In the present embodiment, eddy flow 52 is multiple, and is arranged at intervals successively along the axial direction of cylinder 51.Optionally, it is multiple
Eddy flow 52 can concentric arranged in series.Wash tub pipe 53 passes through at least one eddy flow 52.For example, as shown in Figures 2 and 3,
Wash tub pipe 53 passes through multiple eddy flow 52.
Above or below eddy flow 52 that flooding nozzle 54 can be located most closely to.
As shown in figs. 4 through 10, the cross-sectional shape of cylinder 51 can be circular, ellipse or polygon etc..Preferably, cylinder
Can be positive regular polygon, for example, regular hexagon when the cross section of body 51 is polygon.In multiple 51 close-packed arrays of cylinder
When, the cylinder 51 of regular hexagon can line up honeycomb structure, prevent flue gas from passing through the gap between two cylinders 51, it is ensured that cigarette
Gas disposal effect.The gas inlet and exhanst gas outlet connected with exhaust gases passes is provided on cylinder 51, gas inlet and flue gas go out
The specific installation position of mouth can determine as needed, such as be arranged on the top and bottom of cylinder 51, can also be arranged on cylinder
On the side wall of body 51.In the present embodiment, gas inlet is located on the bottom wall of cylinder 51, and exhanst gas outlet is located at the roof of cylinder 51
On, i.e., flue gas is flowed along direction from bottom to top in fig. 2.
Eddy flow 52 can also include cyclone cover cylinder 522, connecting rod 523 and central tube 524 in addition to swirl vane 521.When
So, in other embodiments, eddy flow 52 can only include swirl vane 521, and 521 disleaf on piece of swirl vane is along 5213 and leaf
Along outside 5214 under piece, also with root of blade 5211 and blade tip 5212.The root of blade 5211 of swirl vane 521 is straight
It connects and is connected with wash tub pipe 53, inner wall of the blade tip 5212 directly with cylinder 51 is connected.
In the present embodiment, central tube 524 is used to be connected with wash tub pipe 53.As shown in Figure 4 and Figure 5, wash tub pipe 53
Through central tube 524.The root of blade 5211 of swirl vane 521 is connected on the outer wall of central tube 524.
Optionally, central tube 524 is spheroid shape structure, and outer surface is arcwall face, so can effectively guide air-flow
Flowing, allows the dust in flue gas and droplet is more prone to shifts to cylinder 51 and accumulate larger particle, realizes dedusting
Defrosting function, meanwhile, the type face of central tube 524 is smooth cambered surface, and airflow-reversing can be made more smooth, reduces resistance.
Optionally, the cross-sectional area of central tube 524 is maximum at the position corresponding to swirl vane 521, and edge moves closer to
The direction of end, the cross-sectional area of central tube 524 are gradually reduced.I.e. along flow of flue gas direction, the cross-sectional area of central tube 524
Gradually it is gradually reduced again after increase.Blind cylinder centered on central tube 524, by central tube section, the closure of upper half elliposoidal and lower semielliptical
Shape closure composition.
Certainly, in other embodiments, central tube 524 can be cylindrical or other structures.
As shown in Fig. 6-Figure 10, each eddy flow 52 is respectively provided with multiple swirl vanes 521, and swirl vane 521 passes through blade
Root 5211 is connected with central tube 524.And along the circumferential direction of central tube 524, multiple swirl vanes 521 are set gradually.It is two neighboring
There can be interval between the root of blade 5211 of swirl vane 521, there can not also be interval.The quantity of swirl vane 521
Value range may be greater than or equal to 12, and less than or equal to 18.These swirl vanes 521 can be with central tube 524
Center centered on, circular array arrangement.
In the present embodiment, the blade tip 5212 of swirl vane 521 is connected on cyclone cover cylinder 522, cyclone cover cylinder 522
/V can be carried out to the both ends of swirl vane 521, and then can increase the stabilization of swirl vane 521 with the cooperation of central tube 524
Property, swirl vane 521 is avoided to generate vibrating noise under the impact of flue gas.
The cross-sectional shape of cyclone cover cylinder 522 can be same or similar with cylinder 51.For example, shown in Fig. 6 and Fig. 7, eddy flow
The cross-sectional shape of cover cylinder 522 can be identical with cylinder 51, when the cross-sectional shape of cylinder 51 is circular, cyclone cover cylinder 522
Cross-sectional shape be also circle, and the two is concentric.When the cross-sectional shape of cylinder 51 is regular hexagon, cyclone cover cylinder 522
Cross-sectional shape also for regular hexagon, and the two is concentric.
Certainly, the cross-sectional shape of cyclone cover cylinder 522 can also be different from cylinder 51.As shown in figure 8, when the horizontal stroke of cylinder 51
When cross sectional shape is regular hexagon, the cross-sectional shape of cyclone cover cylinder 522 can be circular.
In the present embodiment, there is gap, under this gap is between the inner wall of the outer wall of cyclone cover cylinder 522 and cylinder 51
Fall passage, it can be for whereabouts such as dust, drops.The size in gap can determine that gap cannot be excessive, so understands shadow as needed
Ring fume treatment efficiency, gap can not be too small and interfere dust, drop or particles fall.
As shown in Figure 12 and Figure 13, optionally, dirt opening 5222 is provided with out on cyclone cover cylinder 522, goes out dirt opening
5222 run through cyclone cover cylinder 522, go out dirt opening 5222 for the dust in flue gas and drop etc. through cyclone cover cylinder 522, so as to arrive
Up to the inner wall of cylinder 51.
In the present embodiment, 5212 lower section of blade tip of each swirl vane 521 is correspondingly arranged on out dirt opening 5222,
To ensure dedusting defogging effect.
Optionally, be provided with connecting rod 523 on the outer wall of cyclone cover cylinder 522, cyclone cover cylinder 522 by connecting rod 523 with
Cylinder 51 connects.Connecting rod 523 can be multiple, and be set along the outer wall uniform intervals of cyclone cover cylinder 522, with to cyclone cover cylinder
522 provide reliable and stable support.Connecting rod 523 can be the structures such as round bar, rectangular shaft or other blocks, plate body, as long as energy
Enough realize the connection of cyclone cover cylinder 522 and cylinder 51.
As shown in Figure 14-Figure 20, the swirl vane of eddy flow 52 of the present embodiment is New-type Swirl Flow blade.It has multi-party
To angle (structure of swirl vane 521 being hereafter described in detail), and can be provided on blade along 5213
Choked flow bank for stopping that drop and dust continue with flow of flue gas, makes drop and dust be separated with flue gas and is guided to flow to cylinder
The inner wall of body 51 finally falls along the inner wall of cylinder 51 and is removed.
Specifically, the multi-direction angle of swirl vane 521 refers to：
The direction of blade tip 5212, at least one swirl vane 521 and 51 cross section of cylinder are arrived along root of blade 5211
Angle gradually increase or reduce.The direction of blade tip 5212 is arrived along root of blade 5211, swirl vane 521 is horizontal with cylinder 51
The angle in section gradually increase or reduces so that the type face of swirl vane 521 for variation type face, can to the flue gas of process into
Row water conservancy diversion makes dust and drop etc. be easier to collect, so as to be easier that removal is separated from flue gas.
In other words, along root of blade 5211 to 5212 direction of blade tip, gradually become with the angle c of horizontal plane
Change, i.e. gradually increase or diminution.Preferably, the direction of blade tip 5212, swirl vane 521 and cylinder are arrived along root of blade 5211
The angle of 51 cross section of body gradually increases.So so that dust and drop are easier to collect to the internal face of cylinder 51, Jin Erbao
Dedusting defogging effect and efficiency are demonstrate,proved.It should be noted that in the present embodiment, the cross section of cylinder 51 is overlapped with horizontal plane.
When eddy flow 52 has multiple swirl vanes 521, it is not necessary to which all swirl vanes 521 arrive leaf along root of blade 5211
On 5212 direction of piece end, the angle c with horizontal plane is variation.Swirl vane 521 has certain inclination angle, is pressed from both sides with horizontal plane
Angle c is variation from root of blade 5211 to blade tip 5212.
Optionally, under along blade along 5213 to blade along 5214 direction, at least one swirl vane 521 and cylinder 51
Gradually increase or the diminution of the angle of cross section.That is, along blade along 5213 to blade under along 5214 direction, with horizontal plane
Angle is also what is gradually changed.As shown in figure 20, the part on the close upper edge of swirl vane 521 and the angle d1 of horizontal plane are less than
Close to the part of lower edge and the angle d2 of horizontal plane.
Wherein, the value range of angle d1 is：24°≤d1≤90°.The value range of angle d2 is：24°≤d2≤45°.
As shown in Figure 9 and Figure 10, under the blade of the swirl vane 521 of eddy flow 52 along 5214 orthographic projection (floor projection,
That is the projection of swirl vane 521 in the horizontal plane) there is angle a between the first line of reference.First line of reference refers to cyclone cover
Cylinder 522 center under blade along 5214 orthographic projection line end (point intersected with the inner wall of cyclone cover cylinder 522) line.
It should be noted that when eddy flow 52 has multiple swirl vanes 521, the angle a of these swirl vanes 521 can
To be identical or different.In the present embodiment, the plane projection of swirl vane 521 it is following along (this implementation
Edge is being just in example, on the blade of the orthographic projection line of the blade lower edge of one of swirl vane 521 and adjacent swirl vane 521
Projection line overlaps), (value range of angle a) is 15 °≤a to the centrifugation angle between edge thread end and the middle cylinder line of centres
≤ 30 °, obtain the centrifugal force of bigger when drop and dust being made to be rotated with flue gas along swirl vane 521, it is easier to be intended to cylinder
51。
As shown in figure 11, under the blade of swirl vane 521 along between 5214 and horizontal plane have angle b.It so can be more
Dust, drop etc. are directed on the wall surface of cylinder 51 well.Edge line and level under the blade of swirl vane 521 along 5214
The value range of the angle in face is 0 ° to 30 °, makes drop and dust in flue gas uphill process, it is easier to tend to swirl vane
521 blade tip 5212, so as to more easily reach the inner wall of cylinder 51.
It should be noted that when eddy flow 52 has multiple swirl vanes 521, the angle b's of each swirl vane 521 takes
Value is not necessarily identical.As long as the value of angle b is in value range.
As shown in Figure 1, another aspect according to the present utility model, provides a kind of absorption tower, including absorbing 1 He of tower shell
Dedusting demister, dedusting demister are above-mentioned dedusting demister.The absorption tower uses the eddy flow leaf with multi-angle
The dedusting demister of piece so that fume treatment effect is more preferable, and adaptive load ability is stronger, has preferable fume treatment effect
Fruit.
Optionally, the bottom of tower shell 1 is absorbed for adsorption tower smoke import 2, and top exports 3 for adsorption tower smoke.Along
Flow of flue gas direction absorbs in tower shell 1 and is disposed with braced frame 4, dedusting demister, water receiving pipe 7 and main flushing water
Pipe 6.
Wherein, braced frame 4, which is fixedly connected on, absorbs on tower shell 1, and is used to support dedusting demister.Dedusting demisting
Device includes multiple dedusting demisting units 5, and radial direction close-packed arrays of multiple dedusting demisting units 5 along cylinder 51.Braced frame 4
Gap between dedusting demisting unit 5 can be blocked, flue gas is made to have to pass through the exhaust gases passes of dedusting demisting unit 5,
So that it is guaranteed that fume treatment effect.
Optionally, dedusting demisting unit 5 can also be sequentially connected along the axial direction of cylinder 51, can so increase the place of flue gas
Stroke is managed, ensures treatment effect.
Water receiving pipe 7 is for connecting main wash tub pipe 6 and the wash tub pipe 53 of each dedusting demisting unit 5, with for flushing water
Pipe 53 supplies water.Water receiving pipe 7 can be hose.Main wash tub pipe 6 rinses water system with outside and is connected, and is interrupted with stored program control system to each
Dedusting demisting unit 5 is rinsed.
The sub- tube type dust removing demister upper end of new multistage eddy flow is equipped with sealing device 9, prevents flue gas from each dedusting demisting list
It escapes in gap between member and between dedusting demisting unit and absorption tower tower wall without dedusting demisting.
The absorption tower course of work is as follows：
Flue gas after desulfurization spray washing, from bottom to top by the tube type dust removing demister with Multi-stage spiral, gas
It flows by the eddy flow period of the day from 11 p.m. to 1 a.m in it, is changed into swirling eddy, under the action of the centrifugal force, dust and drop in flue gas etc. are got rid of
Onto the inner wall of cylinder 51, liquid film is formed, and accumulates larger particle (comprising drop and dust etc.), under the effect of gravity,
Particles fall realizes dust, the purpose of droplet in removal flue gas, reaches the standard of ultra-clean discharge.
According to the exhaust gas volumn that need to be handled several dedusting demisting units 5 can be selected to be arranged in juxtaposition into new Multi-stage spiral
Sub- tube type dust removing demister.
Dedusting demister according to the present utility model and absorption tower have the following technical effect that：
Change the swirl vane of eddy flow, make it have multidirectional angle, drop and dust is made to be easier to be centrifuged
Power, and tend to gather dust for cylinder.
The downside on edge and/or upside, which are set, on blade stops that drop and dust continuation with the choked flow bank of flow of flue gas, make
Drop and dust separate before swirl vane is left with flue gas and are guided to flow to cylinder inboard wall, so as to along cylinder inboard wall fall and
It is removed.
Dirt opening is set out between cyclone cover cylinder forward spin flow blade, the drop agglomerated on swirl vane and dust is made more to hold
The inner wall of cylinder is easily reached through cover cylinder.
The installation space of the sub- tube type dust removing demister requirement of the Multi-stage spiral is small, and load is light, is equivalent to and is removed in routinely
Dirt demister, can absorption tower is not expanding do not increase load in the case of install, but dedusting demisting efficiency is removed far above conventional
Dirt demister, it can be ensured that outlet dust≤5mg/N.m3, implement ultra-clean discharge.The sub- tube type dust removing demisting of new multistage eddy flow
Device can be with standardized designs, manufacture, modularization installation.Invest low, operating cost is low, safeguards simple, and reliability is high.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (13)
1. a kind of dedusting demister, which is characterized in that including dedusting demisting unit (5), dedusting demisting unit (5) bag
It includes：
Cylinder (51), the cylinder (51) have exhaust gases passes；
Eddy flow (52), the eddy flow (52) are arranged in the exhaust gases passes, and the eddy flow (52) includes multiple eddy flows
Blade (521) is connected with the choked flow that can stop at least part dust and/or drop at least one swirl vane (521)
Structure.
2. dedusting demister according to claim 1, which is characterized in that each swirl vane (521) has blade
Upper edge (5213) and blade lower edge (5214), the reducing-flow structure are arranged on edge on the blade of the swirl vane (521)
(5213)。
3. dedusting demister according to claim 1, which is characterized in that the reducing-flow structure includes the first choked flow bank
(5215), the first choked flow bank (5215) is connected on the blade of the swirl vane (521) along on (5213), and to described
Extend on blade along the lower section of (5213).
4. dedusting demister according to any one of claim 1 to 3, which is characterized in that the reducing-flow structure also wraps
The second choked flow bank (5216) is included, the second choked flow bank (5216) passes through linkage section (5217) and the swirl vane (521)
It is connected on blade along (5213), and the second choked flow bank (5216) is located at the top of the swirl vane (521).
5. dedusting demister according to claim 1, which is characterized in that each swirl vane (521) has blade
Root (5211) and blade tip (5212) arrive the direction of the blade tip (5212) along the root of blade (5211), until
A few swirl vane (521) and the angle of the cylinder (51) cross section gradually increase or reduce.
6. dedusting demister according to claim 5, which is characterized in that arrive the leaf along the root of blade (5211)
The direction of piece end (5212), at least one swirl vane (521) and the angle of the cylinder (51) cross section gradually increase
Greatly.
7. dedusting demister according to claim 1 or 5, which is characterized in that each swirl vane (521) has leaf
On piece is along (5213) and blade lower edge (5214), the edge (5213) to the direction of the blade lower edge (5214) along the blade,
At least one swirl vane (521) and the angle of the cylinder (51) cross section gradually increase or reduce.
8. dedusting demister according to claim 1, which is characterized in that the eddy flow (52) further includes cyclone cover cylinder
(522), the swirl vane (521) is mounted in the cyclone cover cylinder (522), and the blade end of the swirl vane (521)
Portion (5212) is connected with the cyclone cover cylinder (522).
9. dedusting demister according to claim 8, which is characterized in that be provided with out on the cyclone cover cylinder (522)
Dirt opening (5222), it is described go out dirt opening (5222) through the cyclone cover cylinder (522), the leaf of each swirl vane (521)
Go out dirt opening (5222) described in being correspondingly arranged below piece end (5212).
10. dedusting demister according to claim 8, which is characterized in that the outside wall surface of the cyclone cover cylinder (522) with
There is gap between the internal face of the cylinder (51)；And/or
Connecting rod (523) is provided on the outer wall of the cyclone cover cylinder (522), the cyclone cover cylinder (522) passes through the connection
Bar (523) is connected with the cylinder (51).
11. dedusting demister according to claim 8, which is characterized in that the eddy flow (52) further includes central tube
(524), the root of blade (5211) of the swirl vane (521) is connected on the central tube (524).
12. dedusting demister according to claim 1, which is characterized in that the dedusting demisting unit (5) to be multiple,
And along the radial direction close-packed arrays of the cylinder (51)；And/or the dedusting demisting unit (5) is multiple, and along the cylinder
(51) axial direction is sequentially connected.
13. a kind of absorption tower, which is characterized in that including absorbing tower shell (1) and dedusting demister, the dedusting demister
For the dedusting demister any one of claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721257131.3U CN207401269U (en) | 2017-09-27 | 2017-09-27 | Dedusting demister and absorption tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721257131.3U CN207401269U (en) | 2017-09-27 | 2017-09-27 | Dedusting demister and absorption tower |
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| Publication Number | Publication Date |
|---|---|
| CN207401269U true CN207401269U (en) | 2018-05-25 |
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ID=62406910
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061097A1 (en) * | 2017-09-27 | 2019-04-04 | 北京中能诺泰节能环保技术有限责任公司 | Dedusting and demisting device and absorption tower |
-
2017
- 2017-09-27 CN CN201721257131.3U patent/CN207401269U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061097A1 (en) * | 2017-09-27 | 2019-04-04 | 北京中能诺泰节能环保技术有限责任公司 | Dedusting and demisting device and absorption tower |
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