CN110302595A - A kind of flue demister flowing flue gas - Google Patents
A kind of flue demister flowing flue gas Download PDFInfo
- Publication number
- CN110302595A CN110302595A CN201910718711.5A CN201910718711A CN110302595A CN 110302595 A CN110302595 A CN 110302595A CN 201910718711 A CN201910718711 A CN 201910718711A CN 110302595 A CN110302595 A CN 110302595A
- Authority
- CN
- China
- Prior art keywords
- flue
- demister
- flue gas
- board group
- elbow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000003546 flue gas Substances 0.000 title claims abstract description 50
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000003517 fume Substances 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims description 18
- 238000007747 plating Methods 0.000 claims description 14
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 7
- 239000008187 granular material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000004088 simulation Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
A kind of flue demister flowing flue gas provided by the invention, including for several flue demister ontologies in wet method fume desulfurizing system, a flue demister ontology is arranged in each elbow region of the net flue of desulphurization system, each flue demister ontology includes ripple board group, ripple board group is arcuate structure, and the radian of the arcuate structure and the bending degree of smoke canal elbow are consistent；Flue demister ontology provided by the invention can not only remove serous granule extra in flue gas, and can play current balance function to flue gas, reduce the resistance of flue.
Description
Technical field
The present invention relates to environmental technology fields, and in particular to a kind of flue demister for flowing flue gas.
Background technique
In wet method fume desulfurizing system, its main function of flue demister is flue gas of the further removing after desulfurizing tower
Entrained slurry droplet, to reduce the content of pollutant in flue gas.
Previous flue demister is arranged in horizontal flue in vertical form, due to depositing for desulfurizing tower exit bend
The flue gas flow rate distributed pole in flue is uneven.And in order to enable flue gas flow rate < 5m/s in flue demister, flue
The cross-sectional area of demister is generally larger, or even has the cross-sectional area of 2~3 times of flue, so flue and flue demister
Connection be flaring and necking form, the Flow Field Distribution that this enters flue gas in flue demister is more uneven.
Since the flue gas flow field for entering flue demister is uneven, then demister localised load will be caused larger, cause
Demister blocking or failure, the dust emission that not only will cause flue gas is exceeded, and desulfurizing tower system resistance can be made excessively high,
So that air-introduced machine deviates design point, the stopping accident of stall flutter occurs.
Another convenience, in conventional wet flue gas desulphurization system, flue gas will successively pass through two from top to bottom after desulfurizing tower
Smoke canal elbow.Flue gas is when by elbow, and by the effect of centrifugal force, inevitable the will appear whirlpool area.The presence in whirlpool area
It is the main reason for causing the increase of elbow resistance.Under normal circumstances, it needs in the elbow position of flue, it is additional to increase deflector
Whirlpool area is eliminated, uniform flow of flue gas speed achievees the purpose that reduce elbow resistance.
Summary of the invention
The purpose of the present invention is to provide a kind of flue demisters for flowing flue gas, solve existing conventional wet flue gas
There are above-mentioned deficiencies in desulphurization system.
In order to achieve the above object, the technical solution adopted by the present invention is that:
A kind of flue demister flowing flue gas provided by the invention, including for several in wet method fume desulfurizing system
A flue demister ontology is arranged with a flue demister ontology in each elbow region of the net flue of desulphurization system,
Each flue demister ontology includes ripple board group, and ripple board group is arcuate structure, the radian and smoke canal elbow of the arcuate structure
Bending degree it is consistent.
Preferably, ripple board group includes the corrugated plating of several arcuate structures, wherein several corrugated plating arranged for interval exist
Elbow region.
Preferably, the spacing between several corrugated platings is nonuniform arrangement structure.
Preferably, the spacing between two adjacent corrugated platings of elbow areas outside is greater than in elbow region
Spacing between two adjacent corrugated platings of side.
Preferably, the proportionality coefficient of spacing is 1.05~1.5 between adjacent corrugated plate.
Preferably, the upstream of ripple board group is provided with the Flushing nozzle for rinsing the slurries absorbed in ripple board group.
Preferably, the downstream of ripple board group is provided with the slurry collecting groove for collecting slurries.
Compared with prior art, the beneficial effects of the present invention are:
A kind of flue demister flowing flue gas provided by the invention installs ripple board group in the elbow region of net flue,
When flue gas enters ripple board group, since its inertial impaction acts on, contained slurry droplet and ripple board group collide and from wave
It is separated on card surface；The structures that are folded to of ripple board group increase the chance that slurries are captured, the slurry not being removed more
Liquid is captured at next turning by identical effect, i.e., the device has slurries contained in effective removing flue gas
The effect of drop；When flue gas enters the elbow region of net flue, since flue gas is by centrifugal force effect in elbow, on the outside of elbow
Pressure drop is larger, and flow velocity is smaller, and surveying in elbow is then that pressure drop is smaller, and flow velocity is larger, or even forms whirlpool area；And work as corrugated plating
When group is in elbow region, it is equivalent to deflector, current balance function is played to flue gas；So that flue provided by the invention removes
Day with fog ontology can not only remove serous granule extra in flue gas, and can play current balance function to flue gas, reduce the resistance of flue
Power.
Further, by the spacing between several corrugated platings be nonuniform arrangement structure, be due in elbow flue gas by
It is acted on to centrifugal force, pressure drop is larger on the outside of elbow, and flow velocity is smaller, and surveying in elbow is then that pressure drop is smaller, and flow velocity is larger, even
Whirlpool area is formd, for playing current balance function to flue gas.
Detailed description of the invention
Fig. 1 is flue demister structural schematic diagram provided by the invention；
Fig. 2 is equal flow flue demister simulation effect contrast figure.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in more detail.
As shown in Figure 1, a kind of flue demister for flowing flue gas provided by the invention, the flue demister are used for wet process cigarette
In desulfurization system, including flue demister ontology, flue demister ontology are provided with several, the net flue 4 of desulphurization system
Each elbow region in be arranged with a flue demister ontology, each flue demister ontology includes ripple board group 1, punching
Wash spray head 2 and slurry collecting groove 3, wherein ripple board group 1 is arcuate structure, the radian of the arcuate structure and smoke canal elbow it is curved
Qu Chengdu is consistent；Flushing nozzle 2 is arranged in the upstream of ripple board group 1, for rinsing the slurries absorbed in ripple board group；Slurries are received
Collection slot 3 is arranged in the downstream of ripple board group 1, for collecting and draining flushing water.
Ripple board group 1 includes the corrugated plating of several arcuate structures, several corrugated plating arranged for interval are in elbow region；Phase
The proportionality coefficient of spacing is 1.05~1.5 between adjacent wave card.
Under normal circumstances, flue gas pressures are high on the outside of smoke canal elbow and flow velocity is small, and the interior survey flue gas pressures of smoke canal elbow are small and flow
It is fast big, in order to optimize the flow field in outside in smoke canal elbow using ripple board group 1, by several arcuate structures in ripple board group 1
Between spacing be set as nonuniform arrangement structure, i.e., outside spacing it is big, interior survey spacing is small.
The working principle of the invention is:
When flue gas enters ripple board group 1, since its inertial impaction acts on, contained slurry droplet and 1 phase of ripple board group
It collides and is separated from ripple plate surface.
The structures that are folded to of ripple board group 1 increase the chance that slurries are captured more, and the slurries not being removed are at next turn
Crook is captured by identical effect, i.e., the device has the function of effectively removing slurry droplet contained in flue gas.
When flue gas enters the elbow region of net flue 4, since flue gas is by centrifugal force effect in elbow, the side pressure outside elbow
Drop larger, flow velocity is smaller, and surveying in elbow is then that pressure drop is smaller, and flow velocity is larger, or even forms whirlpool area.
And when ripple board group 1 is in elbow region, it is equivalent to deflector, current balance function is played to flue gas.
Embodiment
In wet method fume desulfurizing system, flue gas successively passes through former flue 7, desulfurizing tower 6, net flue 4, finally by chimney
5 are discharged into atmosphere.
One flue demister ontology is installed respectively in two elbow regions of net flue.
By add flow flue gas flue demister arrangements before and after effect simulation compare as shown in Fig. 2, can obtain
A kind of flue demister arrangements flowing flue gas can not only remove serous granule extra in flue gas, and can rise to flue gas equal
Stream effect, reduces the resistance of flue.
Claims (7)
1. a kind of flue demister for flowing flue gas, which is characterized in that including for several in wet method fume desulfurizing system
Flue demister ontology is arranged with a flue demister ontology in each elbow region of the net flue (4) of desulphurization system,
Each flue demister ontology includes ripple board group (1), and ripple board group (1) is arcuate structure, the radian and cigarette of the arcuate structure
The bending degree of road elbow is consistent.
2. a kind of flue demister for flowing flue gas according to claim 1, which is characterized in that ripple board group (1) includes
The corrugated plating of several arcuate structures, wherein several corrugated plating arranged for interval are in elbow region.
3. a kind of flue demister for flowing flue gas according to claim 2, which is characterized in that between several corrugated platings
Spacing be nonuniform arrangement structure.
4. a kind of flue demister for flowing flue gas according to claim 3, which is characterized in that close to elbow areas outside
Two adjacent corrugated platings between spacing be greater than close to elbow area inside two adjacent corrugated platings between spacing.
5. a kind of flue demister for flowing flue gas according to claim 2, which is characterized in that between adjacent corrugated plate
Away from proportionality coefficient be 1.05~1.5.
6. a kind of flue demister for flowing flue gas according to claim 1, which is characterized in that ripple board group (1) it is upper
Trip is provided with the Flushing nozzle (2) for rinsing the slurries absorbed in ripple board group.
7. a kind of flue demister for flowing flue gas according to claim 1, which is characterized in that under ripple board group (1)
Trip is provided with the slurry collecting groove (3) for collecting slurries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718711.5A CN110302595A (en) | 2019-08-05 | 2019-08-05 | A kind of flue demister flowing flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718711.5A CN110302595A (en) | 2019-08-05 | 2019-08-05 | A kind of flue demister flowing flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110302595A true CN110302595A (en) | 2019-10-08 |
Family
ID=68083124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910718711.5A Pending CN110302595A (en) | 2019-08-05 | 2019-08-05 | A kind of flue demister flowing flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110302595A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797292A (en) * | 2022-05-16 | 2022-07-29 | 大唐环境产业集团股份有限公司 | Large-particle fly ash intercepting device of multilayer corrugated plate type SCR system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562447A (en) * | 2004-04-22 | 2005-01-12 | 孙克勤 | Flow field adaptation type demister |
| US20100089242A1 (en) * | 2008-10-10 | 2010-04-15 | Rea Plastik Tech Gmbh | Plugging Resistant Mist Eliminator For Horizontal Gas Flow Built From Tubular Elements And Vane Type Lamella |
| CN203123700U (en) * | 2013-01-25 | 2013-08-14 | 中冶南方工程技术有限公司 | Mist separator with wing type water baffle |
| CN203598607U (en) * | 2013-10-25 | 2014-05-21 | 福建鑫泽环保设备工程有限公司 | Flue-gas denitrifying and pre-dedusting device |
| CN205850421U (en) * | 2016-08-11 | 2017-01-04 | 西安西热锅炉环保工程有限公司 | A kind of pretreatment unit arranged in horizontal-flow type flue demister front |
| CN211025459U (en) * | 2019-08-05 | 2020-07-17 | 中国华能集团清洁能源技术研究院有限公司 | Flue defroster of flue gas flow equalizes |
-
2019
- 2019-08-05 CN CN201910718711.5A patent/CN110302595A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562447A (en) * | 2004-04-22 | 2005-01-12 | 孙克勤 | Flow field adaptation type demister |
| US20100089242A1 (en) * | 2008-10-10 | 2010-04-15 | Rea Plastik Tech Gmbh | Plugging Resistant Mist Eliminator For Horizontal Gas Flow Built From Tubular Elements And Vane Type Lamella |
| CN203123700U (en) * | 2013-01-25 | 2013-08-14 | 中冶南方工程技术有限公司 | Mist separator with wing type water baffle |
| CN203598607U (en) * | 2013-10-25 | 2014-05-21 | 福建鑫泽环保设备工程有限公司 | Flue-gas denitrifying and pre-dedusting device |
| CN205850421U (en) * | 2016-08-11 | 2017-01-04 | 西安西热锅炉环保工程有限公司 | A kind of pretreatment unit arranged in horizontal-flow type flue demister front |
| CN211025459U (en) * | 2019-08-05 | 2020-07-17 | 中国华能集团清洁能源技术研究院有限公司 | Flue defroster of flue gas flow equalizes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797292A (en) * | 2022-05-16 | 2022-07-29 | 大唐环境产业集团股份有限公司 | Large-particle fly ash intercepting device of multilayer corrugated plate type SCR system |
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