CN208320400U - A kind of flue gas desulfurization device and flue gas desulphurization system - Google Patents
A kind of flue gas desulfurization device and flue gas desulphurization system Download PDFInfo
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- CN208320400U CN208320400U CN201820750217.8U CN201820750217U CN208320400U CN 208320400 U CN208320400 U CN 208320400U CN 201820750217 U CN201820750217 U CN 201820750217U CN 208320400 U CN208320400 U CN 208320400U
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- flue
- flue gas
- desulfurization device
- fluidisation
- absorption tower
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- 239000003546 flue gas Substances 0.000 title claims abstract description 192
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 189
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 83
- 230000023556 desulfurization Effects 0.000 title claims abstract description 82
- 238000005243 fluidization Methods 0.000 claims abstract description 88
- 239000007789 gas Substances 0.000 claims abstract description 75
- 238000010521 absorption reaction Methods 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims abstract description 21
- 239000000779 smoke Substances 0.000 claims abstract description 7
- 235000019504 cigarettes Nutrition 0.000 claims description 14
- 230000002459 sustained effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 description 12
- 230000003009 desulfurizing effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000001133 acceleration Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 210000000867 larynx Anatomy 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
This application discloses a kind of flue gas desulfurization device and flue gas desulphurization systems, wherein flue gas desulfurization device includes absorption tower, its smoke inlet is provided with venturi aditus laryngis, further include: for being connected to the fluidisation flue of the entrance in flue gas source and venturi aditus laryngis, the exhaust gas volumn fluidized in flue is greater than or equal to minimum fluidization air quantity, the size of venturi aditus laryngis is arranged according to minimum fluidization air quantity, under minimum fluidization air quantity, the exiting flue gas flow velocity of venturi aditus laryngis reaches the flow rate setpoint for desulfurizer powder fluidisation；For being connected to the adjusting flue of the uptake zone in flue gas source and the absorption tower, adjusts and be provided with flow regulator on flue.This equipment is either under the underload and high load capacity in flue gas source, it can guarantee that flue gas desulfurization is not collapsed bed, and it will not need to back into absorption tower exiting flue gas into venturi aditus laryngis entrance progress flue gas recirculation, reduce operating cost as the prior art.
Description
Technical field
The utility model relates to flue gas desulfurization technique field, in particular to a kind of flue gas desulfurization device.The utility model is also
It is related to a kind of flue gas desulphurization system comprising the flue gas desulfurization device.
Background technique
In fields such as chemical industry, metallurgy, a large amount of sulfur dioxide and other sour gas are contained in flue gas caused by some equipment
Body cannot be directly discharged in atmosphere such as boiler fired coal flue gas, needed to first pass through flue gas desulfurization device and carried out at desulfurization to flue gas
Reason.
Existing fume desulphurization method mainly has wet desulphurization, dry desulfurization and semi-dry desulphurization, wherein wet desulphurization is
Flue gas is passed through in desulfurizer by finger, carries out desulfurization by spray desulfurization slurry and smoke contacts, wet desulphurization is imitated with desulfurization
The high advantage of rate, but desulfurization slurry is strong to the corrosivity of desulphurization plant；Dry desulfurization, which refers to, is passed through flue gas in desulfurizer,
The desulfurizing agent for the dry powder being passed through in equipment is blown afloat and is carried out contact desulfuriation by flue gas, although corrosion of the dry desulfurization to equipment
It is small, but desulfuration efficiency is lower；Semi-dry desulphurization, which refers to, is passed through flue gas in desulfurizer, the dry powder that flue gas will be passed through in equipment
Last shape desulfurizing agent is blown afloat, and sprays a small amount of liquid, contacts flue gas with the partially dried powder desulfurizing agent for being mixed with a small amount of moisture
The advantages of desulfurization, this method has combined wet desulphurization and dry desulfurization, currently, being widely used.
For dry desulfurization and semi-dry desulphurization, the problem is that: flue gas passes through the venturi larynx in flue
Mouth is passed through in absorption tower, and dry powder desulfurizing agent and partially dried powder shape desulfurizing agent are passed through in absorption tower by desulfurizing agent pipeline, is led to
The high flow velocities for crossing the flue gas of venturi aditus laryngis are to guarantee an important factor for absorption tower is not collapsed bed, and the flow velocity of usual flue gas is greater than
When 35m/s, it can guarantee that flue gas blows afloat desulfurizing agent, do not collapse bed.But in order to guarantee the smooth discharge of boiler smoke, literary mound
In aditus laryngis size be all designed according to the smoke discharge amount under boiler peak load, so when boiler compared with Smaller load run
When, it is too low as low as the flue gas flow rate that will cause venturi aditus laryngis to a certain degree, cause desulfurizing agent in tower that can not fluidize, collapse bed.For
Solution this problem had a kind of technology to carry out flue gas by the way that absorption tower exiting flue gas is backed into venturi aditus laryngis entrance later
The method of recycling solves underrun stable problem, this result in air-introduced machine no matter boiler load how much, it is necessary to it is full negative
Lotus operation, causes power consumption rate to increase, operating cost is high.
Utility model content
In view of this, one of the utility model is designed to provide a kind of flue gas desulfurization device, to guarantee that flue gas is de-
Sulphur does not collapse under the premise of bed, reduces desulphurization cost.
Another of the utility model is designed to provide a kind of flue gas desulphurization system comprising the flue gas desulfurization device, with
Under the premise of bed is not collapsed in guarantee flue gas desulfurization, desulphurization cost is reduced.
In order to achieve the above objectives, the utility model the following technical schemes are provided:
A kind of flue gas desulfurization device, including absorption tower, the smoke inlet on the absorption tower are provided with venturi aditus laryngis, also wrap
It includes:
Exhaust gas volumn for being connected to the fluidisation flue of the entrance in flue gas source and the venturi aditus laryngis, in the fluidisation flue
More than or equal to minimum fluidization air quantity, the size of the venturi aditus laryngis is arranged according to the minimum fluidization air quantity, it is described most
Under small Fluidization wind rate, the exiting flue gas flow velocity of the venturi aditus laryngis reaches the flow rate setpoint for desulfurizer powder fluidisation；
For being connected to the adjusting flue of the uptake zone in the flue gas source and the absorption tower, it is provided in the adjusting flue
Flow regulator.
Preferably, in above-mentioned flue gas desulfurization device, the minimum fluidization air quantity of the fluidisation flue is produced by flue gas source
The 30%~70% of raw maximum exhaust gas volumn.
Preferably, in above-mentioned flue gas desulfurization device, the flow rate setpoint is greater than or equal to 35m/s.
Preferably, in above-mentioned flue gas desulfurization device, the fluidisation flue and the adjusting flue cross and are connected to cigarette
Gas source.
Preferably, in above-mentioned flue gas desulfurization device, the flow regulator is to be set in the adjusting flue
Flow control valve or be rotatably dispose in it is described adjusting flue and it is described fluidisation flue intersection flow controllable register.
Preferably, in above-mentioned flue gas desulfurization device, the adjusting flue includes air inlet section and annular air-guide section, described
Annular air-guide section is arranged around the absorption tower, and multiple uptake zones with the absorption tower are provided on the annular air-guide section and are connected
Logical nozzle.
Preferably, in above-mentioned flue gas desulfurization device, the nozzle is tilted down along the direction close to the absorption tower,
Angle between the axis and horizontal plane of the nozzle is 15 °~45 °.
Preferably, in above-mentioned flue gas desulfurization device, the nozzle is located in sustained height plane or layered arrangement.
Preferably, in above-mentioned flue gas desulfurization device, the adjusting flue includes air inlet section and annular passage, the ring
Shape air duct is surrounded in the top flared section of the venturi aditus laryngis, and the top of the annular passage and the venturi aditus laryngis
Flared section connection.
Preferably, in above-mentioned flue gas desulfurization device, booster fan is additionally provided on the fluidisation flue.
The utility model additionally provides a kind of flue gas desulphurization system, including flue gas desulfurization device, the flue gas desulfurization device
Flue gas desulfurization device as described in any of the above item.
Preferably, further include cleaner in above-mentioned flue gas desulphurization system, the gas inlet of the cleaner with
The exhanst gas outlet on the absorption tower is connected to.
Preferably, in above-mentioned flue gas desulphurization system, including cycle flue, the both ends of the cycle flue respectively with institute
The gas outlet for stating cleaner is connected to the fluidisation flue.
Compared with prior art, the utility model has the beneficial effects that
In flue gas desulfurization device provided by the utility model, the flue gas of generation is passed through to fluidisation flue respectively and adjusts flue
It is passed through in absorption tower；Flue gas in fluidisation flue is passed through in absorption tower after the acceleration of venturi aditus laryngis, participates in desulfurizer powder
Fluidisation adjusts the flue gas in flue and is passed directly into the uptake zone in absorption tower, participates in flue gas desulfurization；By to the cigarette for adjusting flue
Tolerance is adjusted, and so that the exhaust gas volumn for fluidizing flue is greater than or equal to minimum fluidization air quantity, the size of venturi aditus laryngis is according to most
Small Fluidization wind rate setting, the size of venturi aditus laryngis meets the following conditions, under minimum fluidization air quantity, fluidizes the flue gas in flue
Flue gas flow rate after the acceleration of venturi aditus laryngis reaches flow rate setpoint, which fluidizes for desulfurizer powder.
Since minimum fluidization air quantity is usually less than total exhaust gas volumn that flue gas source generates at low load, even if cigarette
Gas source is less in the exhaust gas volumn that underload generates, and can be adjusted by adjusting the exhaust gas volumn of flue, keep the exhaust gas volumn for fluidizing flue big
In or be equal to minimum fluidization air quantity, and under minimum fluidization air quantity, fluidize cigarette of the flue gas of flue after the acceleration of venturi aditus laryngis
Gas velocity consistently achieves flow rate setpoint, i.e., desulfurizer powder can be blown afloat to fluidisation always, be not in the bed that collapses.Similarly,
When flue gas source works under higher load, the exhaust gas volumn of generation is larger, and the exhaust gas volumn that again may be by adjusting flue is adjusted,
The exhaust gas volumn for fluidizing flue is set to maintain minimum fluidization air quantity or more, remaining flue gas is directly entered absorption tower by adjusting flue
Uptake zone is not involved in the fluidisation of desulfurizer powder, but directly participates in desulfurization, and all flue gases that final flue gas source generates pass through
It is discharged after the desulfurization of absorption tower.The flue gas desulfurization device either under the underload and high load capacity in flue gas source, can guarantee cigarette
Desulfurization does not collapse bed, and will not need absorption tower exiting flue gas backing into venturi aditus laryngis as the prior art
Entrance carries out flue gas recirculation, reduces operating cost.
Flue gas desulphurization system provided by the utility model uses the flue gas desulfurization device in the utility model, therefore, tool
There is identical technical effect, details are not described herein.
Detailed description of the invention
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 the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of structural schematic diagram of flue gas desulfurization device provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of second of flue gas desulfurization device provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of the third flue gas desulfurization device provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of the third flue gas desulfurization device provided by the embodiment of the utility model；
Fig. 5 is the schematic diagram of Section A-A in Fig. 4；
Fig. 6 is the structural schematic diagram of the 4th kind of flue gas desulfurization device provided by the embodiment of the utility model；
Fig. 7 is a kind of structural schematic diagram of flue gas desulphurization system provided by the embodiment of the utility model.
Wherein, 1 be fluidisation flue, 2 be venturi aditus laryngis, 3 be nozzle, 4 be absorption tower, 5 be adjust flue, 51 be air inlet
Section, 52 be annular guide section, 53 be annular passage, 6 be flow control valve, 7 be flow controllable register, 8 be booster fan, 9 be
Cleaner, 10 be air-introduced machine, 11 be cycle flue, 12 be desulfurizing agent reflux line.
Specific embodiment
There is provided a kind of flue gas desulfurization devices for the core of the utility model, before bed is not collapsed in guarantee flue gas desulfurization
It puts, reduces desulphurization cost.
The utility model additionally provides a kind of flue gas desulphurization system comprising the flue gas desulfurization device, is guaranteeing flue gas desulfurization
It does not collapse under the premise of bed, reduces desulphurization cost.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
With reference to Fig. 1-Fig. 4, the utility model embodiment provides a kind of flue gas desulfurization device, including absorption tower 4, venturi
Aditus laryngis 2, adjusts flue 5 and flow regulator at fluidisation flue 1.Wherein, the bottom cigarette on absorption tower 4 is arranged in venturi aditus laryngis 2
Gas inlet；The both ends of fluidisation flue 1 are connected to the entrance in flue gas source and venturi aditus laryngis 2 respectively, fluidize the flue gas in flue 1
Amount is greater than or equal to minimum fluidization air quantity, and the size of venturi aditus laryngis 2 is arranged according to minimum fluidization air quantity, venturi aditus laryngis 2
Size meets the following conditions, and under minimum fluidization air quantity, the exiting flue gas flow velocity of venturi aditus laryngis 2 reaches for desulfurizer powder
The flow rate setpoint of fluidisation；The uptake zone that flue 5 is connected to flue gas source and absorption tower 4 is adjusted, flow regulator setting is being adjusted
On flue 5, for the exhaust gas volumn for adjusting flue 5 to be adjusted.
The working principle and the course of work of the flue gas desulfurization device are: the flue gas that flue gas source (usually boiler) generates, one
Part enters fluidisation flue 1, enters in absorption tower 4 by venturi aditus laryngis 2, (usually by the desulfurizer powder in absorption tower 4
Calcium hydroxide) it blows afloat, flow desulfurizer powder in absorption tower 4；Remaining flue gas is directly entered absorption tower 4 by adjusting flue 5
Be located in the uptake zone of the top of venturi aditus laryngis 2, which will not have an impact the flow regime of desulfurizer powder,
It is only involved in desulfurization, finally, absorption tower 4 is discharged in whole flue gases after desulfurization.Due to venturi aditus laryngis 2 size (specially
Bore, length and reducing and expansion angle) it is designed according to minimum fluidization air quantity, when the exhaust gas volumn in fluidisation flue 1 is in minimum fluidization wind
When measuring above, as long as flue gas flow rate out can reach flow rate setpoint by venturi aditus laryngis 2, that is, can be by powdery
Desulfurizing agent is blown afloat, and is not in the bed that collapses, and fluidizes the exhaust gas volumn in flue 1 by the way that the exhaust gas volumn for adjusting flue 5 is adjusted
It arrives.
Since minimum fluidization air quantity is usually less than total exhaust gas volumn that flue gas source generates at low load, even if cigarette
Gas source is less in the exhaust gas volumn that underload generates, and can be adjusted by adjusting the exhaust gas volumn of flue, keep the exhaust gas volumn for fluidizing flue 1 big
In or be equal to minimum fluidization air quantity, and under minimum fluidization air quantity, fluidize the flue gas in flue 1 after the acceleration of venturi aditus laryngis 2
Flue gas flow rate consistently achieve flow rate setpoint, i.e., desulfurizer powder can be blown afloat to fluidisation always, be not in the bed that collapses.Similarly
Ground, when flue gas source works under higher load, the exhaust gas volumn of generation is larger, again may be by the exhaust gas volumn for adjusting flue 5
It adjusts, the exhaust gas volumn for fluidizing flue 1 is made to maintain minimum fluidization air quantity or more, remaining flue gas is directly entered by adjusting flue 5
The uptake zone on absorption tower 4 is not involved in the fluidisation of desulfurizer powder, but directly participates in desulfurization, and final flue gas source generates all
Flue gas is discharged after 4 desulfurization of absorption tower.The flue gas fluidizer is either under the underload and high load capacity in flue gas source, only
The exhaust gas volumn for wanting flue gas source to generate is greater than minimum fluidization air quantity, can guarantee that flue gas desulfurization is not collapsed bed, and will not be as existing
There is technology the same, does not need to carry out flue gas recirculation before 4 exiting flue gas of absorption tower to be backed into 2 entrance of venturi aditus laryngis, from
And reduce operating cost.
In the present embodiment, the minimum fluidization air quantity of fluidisation flue 1 is optimized, fluidizes the minimum fluidization wind of flue 1
Amount is 30%~70% of maximum exhaust gas volumn caused by flue gas source.I.e. flue gas source under full capacity caused by exhaust gas volumn most
Greatly, using this maximum exhaust gas volumn as standard, by the minimum fluidization air quantity for fluidizing flue 1 be set as the maximum exhaust gas volumn 30%~
70%.The arbitrary proportions such as 30%, 40%, 50%, 60% or 70% being specifically as follows in 30%~70% ratio section.
It is illustrated so that minimum fluidization air quantity is the 30% of maximum exhaust gas volumn as an example, indicates that the exhaust gas volumn of fluidisation flue 1 exists
When reaching 30% or more of maximum exhaust gas volumn caused by flue gas source, the flue gas flow rate after acceleration can reach flow rate setpoint,
Desulfurizer powder can effectively be blown afloat, and flow in absorption tower 4, the bed that collapses do not occur.In the case where the minimum fluidization air quantity,
If flue gas source, in its 30% or more working under load, total exhaust gas volumn that flue gas source generates is greater than or equal to the minimum fluidization
Air quantity.
More specifically, for example, if flue gas source is in its 30% working under load, total exhaust gas volumn etc. of flue gas source generation
In the minimum fluidization air quantity, in such cases, the exhaust gas volumn for adjusting flue 5 is adjusted to zero, that is, whole flue gases are passed through into fluidisation
Flue 1 enters in absorption tower 4, participates in the fluidisation of desulfurizer powder, then the exhaust gas volumn fluidized at this time in flue 1 just reaches minimum
Fluidization wind rate, the flue gas flow rate after acceleration can just reach flow rate setpoint.
For another example total exhaust gas volumn that flue gas source generates is flue gas source if flue gas source is in its 50% working under load
The 50% of generated maximum exhaust gas volumn, and fluidize flue 1 and need the 30% of maximum exhaust gas volumn just to can satisfy the bed that do not collapse
It is required that therefore, being adjusted to the exhaust gas volumn for adjusting flue 5, it is passed through the 30% of at least maximum exhaust gas volumn in fluidisation flue 1,
Remaining maximum exhaust gas volumn for being less than 20%, which is passed through, to be adjusted in flue 5.
In another example the exhaust gas volumn that flue gas source generates is maximum flue gas if flue gas source is in 100% lower work at full capacity
Amount is adjusted the exhaust gas volumn for adjusting flue 5, at least 30% maximum exhaust gas volumn is still made to be passed through fluidisation in such cases
In flue 1, remaining maximum exhaust gas volumn less than 70%, which is passed through, to be adjusted in flue 5.
As it can be seen that when minimum fluidization air quantity is set in the 30% of maximum exhaust gas volumn, under 30% or more the load in flue gas source
When work, as long as the exhaust gas volumn for fluidizing flue 1 is made to maintain 30% maximum exhaust gas volumn, correspondingly, adjusting flue 5 is undertaken
Remaining 0~70% maximum exhaust gas volumn.
Similarly, when specified exhaust gas volumn is the maximum exhaust gas volumn of 40%, 50%, 60%, 70% equal proportion, as long as flue gas source
It, can be by the exhaust gas volumn for adjusting flue 5 in corresponding 40%, 50%, 60%, the above working under load of 70% equal proportion
It is adjusted, realizes that the exhaust gas volumn of fluidisation flue 1 works under specified exhaust gas volumn, be not in the bed that collapses.
In the present embodiment, flow rate setpoint is optimized, flow rate setpoint is greater than or equal to 35m/s, specifically can be with
For any numbers such as 35m/s, 40m/s, 45m/s or 50m/s.That is, the flue gas in fluidisation flue 1 is after the acceleration of venturi aditus laryngis 2
Flue gas flow rate be greater than or equal to 35/s, 40m/s, 45m/s or 50m/s when, be not in the bed that collapses, specific flow rate setpoint according to
Depending on actual process needs, it is not limited to numerical value cited by the present embodiment.
As Figure 1-Figure 4, in the present embodiment, fluidisation flue 1 and adjusting flue 5 cross and are connected to flue gas source, that is, cigarette
After the flue gas of gas source first collects discharge, then it is divided into fluidisation flue 1 and adjusts flue 5.Certainly, fluidisation flue 1 and adjusting cigarette
Road 5 can also be individually connected to flue gas source, and the flue gas in flue gas source directly respectively enters fluidisation flue 1 and adjusts flue 5.As long as energy
Enough realize the adjusting circulation of flue gas.The quantity of adjusting flue 5 it is not limited here, can be for one, two, three etc. more
It is multiple.
As shown in Figure 1, Figure 2 and Figure 4, a kind of specific flow regulator is present embodiments provided, which adjusts dress
It is set to the flow control valve 6 for being arranged in and adjusting in flue 5.By adjusting the aperture and opening and closing of flow control valve 6, fluidisation cigarette is adjusted
Exhaust gas volumn in road 1.
As shown in figure 3, present embodiments providing another specific flow regulator, which is rotation
It is set to the flow controllable register 7 for adjusting the intersection of flue 5 and fluidisation flue 1, specifically, the rotation of flow controllable register 7 connects
It is connected to the inlet for adjusting flue 5 and the one side edge close to venturi aditus laryngis 2, flow controllable register 7 can be to adjusting flue 5
The outer side to overturn of entrance, the difference of flip angle realizes the adjusting for adjusting exhaust gas volumn in flue 5, when flow controllable register 7 fastens
When adjusting the entrance of flue 5, adjusts flue 5 and close, the angle that flow controllable register 7 flips to the outside is bigger, then fluidizes cigarette
The flue gas flow in road 1 is smaller.
As shown in Figures 2 and 3, a kind of specific structure for adjusting flue 5, the adjusting flue 5 packet are present embodiments provided
The air inlet section 51 and annular air-guide section 52, one end of air inlet section 51 for including connection are connected to flue gas source, can specifically be handed over fluidisation flue 1
It converges, the other end of air inlet section 51 is connected to annular air-guide section 52, and annular air-guide section 52 is arranged around absorption tower 4, annular air-guide section
The nozzle 3 that multiple uptake zones with absorption tower 4 are connected to is provided on 52.Pass through annular air-guide section into the flue gas for adjusting flue 5
After 52 annular air guide, into multiple nozzles 3, sprayed in absorption tower 4 by nozzle 3.Preferably, multiple nozzles 3 are along annular
The circumferencial direction of air-guide section 52 is evenly arranged, and improves the uniformity of jet.
Further, in the present embodiment, nozzle 3 is tilted down along close to the direction on absorption tower 4, the axis of nozzle 3 with
Angle between horizontal plane is 15 °~45 °, more preferably 20 °~30 °.It is in order to anti-by the purpose that nozzle 3 is arranged diagonally downward
The only flue gas dust stratification in nozzle 3 in slow flow conditions avoids nozzle 3 from blocking.
Further, in the present embodiment, nozzle 3 is located in sustained height plane or layered arrangement, that is, is located at difference
Elevation plane.Such setting be in order to guarantee flue gas be uniformly mixed and tower in flue gas flow it is reasonable.
As shown in Figure 4 and Figure 5, another specific structure for adjusting flue 5, the adjusting flue 5 are present embodiments provided
Air inlet section 51 and annular passage 53 including connection, one end of air inlet section 51 are connected to flue gas source, can specifically be handed over fluidisation flue 1
It converges, the other end of air inlet section 51 is connected to annular passage 53, and annular passage 53 is surrounded on the top flared section of venturi aditus laryngis 2
On, annular passage 53 is surrounded by the outer wall of venturi aditus laryngis 2 with annular passage shell, and annular passage 53 and venturi aditus laryngis 2
Top flared section connection.Flue gas successively passes through air inlet section 51 and annular passage 53, and venturi larynx is sprayed into the form of annular wind
In mouthfuls 2 top flared section, will not flow velocity to the flue gas by venturi aditus laryngis 2 and flow regime have an impact, ensure that
It operates normally.
As shown in Figure 1, certainly, adjust flue 5 can also be simple pipeline, the both ends of pipeline respectively with flue gas source and suction
It receives tower 4 to be connected to, only intake uniformity is not so good as the first two structure.
As shown in fig. 6, further, in the present embodiment, fluidizing and being additionally provided with booster fan 8 on flue 1, pass through setting
Booster fan 8 opens booster fan 8 when the exhaust gas volumn in fluidisation flue 1 is not enough to maintain flow rate setpoint, to fluidize cigarette
Flue gas in road 1 provides higher pressure head, preferably to meet the flow rates demand at venturi aditus laryngis 2.
Based on flue gas desulfurization device described in any of the above embodiment, the utility model embodiment additionally provides a kind of cigarette
Desulfurization system comprising flue gas desulfurization device, and the flue gas desulfurization device is that flue gas described in any of the above embodiment is de-
Sulphur equipment.
Since flue gas desulphurization system uses the flue gas desulfurization device in the utility model, it can satisfy flue gas source
Flue gas desulfurization under underload and high load capacity, and the bed that do not collapse reduces operating cost compared with prior art.
Further, as shown in fig. 7, flue gas desulphurization system further includes cleaner 9, the gas inlet of cleaner 9 with
The exhanst gas outlet on absorption tower 4 is connected to, and there are flue dust in the flue gas after desulfurization process, therefore is carried out by cleaner 9 to flue gas
Dust removal process is discharged again later.Cleaner 9 can be cloth cleaner.
Further, in the present embodiment, flue gas desulphurization system further includes cycle flue 11, the both ends of cycle flue 11
It is connected to respectively with the gas outlet of cleaner 9 and fluidisation flue 1, air-introduced machine 10 is set on cycle flue 11, passes through air-introduced machine 10
Clean flue gas is backed into before the entrance of venturi aditus laryngis 2 again, carry out recycling for flue gas, to supplement fluidisation flue
Flue gas in 1 makes to fluidize the exhaust gas volumn in flue 1 under more running on the lower load, reaches minimum fluidization air quantity, guarantee flue gas desulfurization
Normal desulfurization operation under more running on the lower load.In this way, the flue gas desulphurization system can be in the load that flue gas source is almost equal to zero
The lower normal operation for completing absorption tower 4, meets flue gas desulfurization of flue gas source during rapid starting/stopping.
As optimization, in the present embodiment, the desulfurizer powder to get off is deposited in cleaner 9 to be recycled, tool
Before body can return to the entrance of venturi aditus laryngis 2 by the desulfurizing agent recovery channel 12 of 9 bottom of cleaner, desulfurizing agent is realized
It repeats and makes full use of.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (13)
1. the smoke inlet of a kind of flue gas desulfurization device, including absorption tower, the absorption tower (4) is provided with venturi aditus laryngis (2),
It is characterized by further comprising:
For being connected to the fluidisation flue (1) of the entrance in flue gas source and the venturi aditus laryngis (2), in the fluidisation flue (1)
Exhaust gas volumn is greater than or equal to minimum fluidization air quantity, and the size of the venturi aditus laryngis (2) is arranged according to the minimum fluidization air quantity,
Under the minimum fluidization air quantity, the exiting flue gas flow velocity of the venturi aditus laryngis (2) reaches for desulfurizer powder fluidisation
Flow rate setpoint；
For being connected to the adjusting flue (5) of the uptake zone in the flue gas source and the absorption tower (4), on the adjusting flue (5)
It is provided with flow regulator.
2. flue gas desulfurization device according to claim 1, which is characterized in that the minimum fluidization wind of fluidisation flue (1)
Amount is 30%~70% of maximum exhaust gas volumn caused by flue gas source.
3. flue gas desulfurization device according to claim 1, which is characterized in that the flow rate setpoint is greater than or equal to 35m/
s。
4. flue gas desulfurization device according to claim 1, which is characterized in that the fluidisation flue (1) and the adjusting cigarette
Road (5), which crosses, is connected to the flue gas source.
5. flue gas desulfurization device according to claim 4, which is characterized in that the flow regulator is to be arranged described
It adjusts the flow control valve (6) in flue (5) or is rotatably dispose in the friendship of adjusting flue (5) and fluidisation flue (1)
Flow controllable register (7) at remittance.
6. flue gas desulfurization device according to claim 1-5, which is characterized in that the adjusting flue (5) includes
Air inlet section (51) and annular air-guide section (52), the annular air-guide section (52) are arranged around the absorption tower (4), and the annular is led
The nozzle (3) that multiple uptake zones with the absorption tower (4) are connected to is provided in gas section (52).
7. flue gas desulfurization device according to claim 6, which is characterized in that the nozzle (3) is along close to the absorption tower
(4) direction tilts down, and the angle between the axis and horizontal plane of the nozzle (3) is 15 °~45 °.
8. flue gas desulfurization device according to claim 6, which is characterized in that the nozzle (3) is located at sustained height plane
Interior or layered arrangement.
9. flue gas desulfurization device according to claim 1-5, which is characterized in that the adjusting flue (5) includes
Air inlet section (51) and annular passage (53), the annular passage (53) are surrounded on the top flared section of the venturi aditus laryngis (2)
On, and the annular passage (53) is connected to the top flared section of the venturi aditus laryngis (2).
10. flue gas desulfurization device according to claim 1-5, which is characterized in that on the fluidisation flue (1) also
It is provided with booster fan (8).
11. a kind of flue gas desulphurization system, including flue gas desulfurization device, which is characterized in that the flue gas desulfurization device such as right is wanted
Seek the described in any item flue gas desulfurization devices of 1-10.
12. flue gas desulphurization system according to claim 11, which is characterized in that further include cleaner (9), the dedusting
The gas inlet of equipment (9) is connected to the exhanst gas outlet of the absorption tower (4).
13. flue gas desulphurization system according to claim 12, which is characterized in that it further include cycle flue (11), it is described to follow
The both ends of annular smoke flue (11) are connected to the gas outlet of the cleaner (9) and the fluidisation flue (1) respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820750217.8U CN208320400U (en) | 2018-05-21 | 2018-05-21 | A kind of flue gas desulfurization device and flue gas desulphurization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820750217.8U CN208320400U (en) | 2018-05-21 | 2018-05-21 | A kind of flue gas desulfurization device and flue gas desulphurization system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966882A (en) * | 2019-04-26 | 2019-07-05 | 山东中玻节能环保发展有限公司 | A kind of turbulent closure scheme formula sintering device flue gas dry desulfurization device |
| CN112076624A (en) * | 2020-09-15 | 2020-12-15 | 山东电力研究院 | SCR denitration device inlet smoke temperature adjusting system and method |
-
2018
- 2018-05-21 CN CN201820750217.8U patent/CN208320400U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966882A (en) * | 2019-04-26 | 2019-07-05 | 山东中玻节能环保发展有限公司 | A kind of turbulent closure scheme formula sintering device flue gas dry desulfurization device |
| CN112076624A (en) * | 2020-09-15 | 2020-12-15 | 山东电力研究院 | SCR denitration device inlet smoke temperature adjusting system and method |
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