CN208406346U - A kind of full working scope adaptability change flue gas flow rate demister - Google Patents
A kind of full working scope adaptability change flue gas flow rate demister Download PDFInfo
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- CN208406346U CN208406346U CN201820766063.1U CN201820766063U CN208406346U CN 208406346 U CN208406346 U CN 208406346U CN 201820766063 U CN201820766063 U CN 201820766063U CN 208406346 U CN208406346 U CN 208406346U
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- flue gas
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Abstract
The utility model discloses a kind of full working scope adaptability to become flue gas flow rate demister, including the low flue gas flow rate mist eliminating zone and high flue gas flow rate mist eliminating zone set gradually along flue gas direction, flue gas removes the biggish drop of partial size in flue gas by low flue gas flow rate mist eliminating zone, and the high flue gas flow rate mist eliminating zone for then going through assembly multi-guide interception type demister blade carries out fine defogging.Both it had solved the problems, such as to improve " secondary droplets " of flue gas flow rate, demisting efficiency when also ensuring underload, when flue gas flow rate is too low merely.
Description
Technical field
The utility model belongs to energy conservation and environmental protection, is related to a kind of full working scope adaptability change flue gas flow rate demister.
Background technique
The collaboration dustproof function of fume desulfurating absorption tower is of increasing concern, and wherein demister is cigarette after control wet desulphurization
The key equipment of the drop discharge carried in gas.According to the requirement of current coal-burning power plant's minimum discharge, dust emission is dense in flue gas
Degree is less than 5mg/m3If controlling (the solid content about 10%) concentration of drop in flue gas in 10mg/m3Within, then drop is taken in flue gas
The dust concentration taken out of about 1mg/m3, in addition the ultrafine dust that entrained absorption tower itself not can be removed in flue gas, Wu Fabao
It demonstrate,proves dust emission in flue gas and is less than 5mg/m3。
Demister is the equipment for carrying out gas-liquid separation using principle of inertia, takes guttiferous velocity of flue gas height then droplet inertia
Greatly, separative efficiency is high and remaining size droplet diameter is small, and therefore, high flue gas flow rate is just able to achieve the efficient demisting of demister.Mesh
Preceding demister is all made of multistage arrangement, and the flue gas flow rate of every level-one demister is identical, in order to prevent the liquid of prime demister trapping
Existing " secondary droplets " phenomenon is oozed, the design current velocity of demister is usually lower.Since flow velocity is low, demister can not efficiently remove small
The drop of partial size.After unit load reduces, flue gas flow rate is further decreased, and the separative efficiency of demister is lower, to influence
Outlet drop discharge.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of full working scope adaptability change cigarette
The separative efficiency of gas velocity demister, the demister is high, and can efficiently remove in flue gas and contain solid droplet.
In order to achieve the above objectives, it includes along flue gas that full working scope adaptability described in the utility model, which becomes flue gas flow rate demister,
The low flue gas flow rate mist eliminating zone and high flue gas flow rate mist eliminating zone that circulating direction is set gradually, wherein in low flue gas flow rate mist eliminating zone
1-3 grades of demisters are provided with, 1-2 grades of demisters are provided in high flue gas flow rate mist eliminating zone；
Multi-guide interception type demister blade is arranged in afterbody demister in high flue gas flow rate mist eliminating zone, two neighboring
Exhaust gases passes are formed between multi-guide interception type demister blade, the exhaust gases passes are by being sequentially connected logical smoke inlet
Section, level-one intercept section, second level intercepts section and exhanst gas outlet section composition；
Level-one intercepts arrangement level-one in section and intercepts hook and several drop guide grooves；Second level interception section is provided with several second levels
Intercept hook, wherein the length that each second level intercepts hook is gradually reduced along the direction of flow of flue gas.
The flow velocity of flue gas is 3.5~5.5m/s in low flue gas flow rate mist eliminating zone.
The flow velocity of flue gas is 5.5~7.5m/s in high flue gas flow rate mist eliminating zone.
The utility model has the following beneficial effects:
Full working scope adaptability described in the utility model becomes flue gas flow rate demister when specific operation, and flue gas passes through low cigarette
Gas velocity mist eliminating zone removes the biggish drop of partial size in flue gas, then goes through assembly multi-guide interception type demister blade
High flue gas flow rate mist eliminating zone carries out fine defogging.This integrated mode had both solved " the two of simple raising flue gas flow rate bring
Secondary carrying " problem, and when improving underload, demisting efficiency when flue gas flow rate is too low.
In high flue gas flow rate mist eliminating zone, the exhaust gases passes being made of multi-guide interception type demister blade pass through cigarette
Flue gas is introduced into level-one and intercepted in section by gas entrance, is intercepted hook by the level-one that level-one intercepts section and is intercepted drop, then leads to
It crosses drop guide groove most of drop is discharged, is further intercepted by the multiple interception hook that second level intercepts section and be detached from drop guiding
The drop of slot makes drop be not easy " secondary droplets ", so that multi-guide interception type demister blade can be in higher flue gas flow rate
In efficient demisting.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram in flue gas demisting channel in the utility model.
Wherein, 1 it is low flue gas flow rate mist eliminating zone, 2 be high flue gas flow rate mist eliminating zone, 3 is multi-guide interception type demister
Blade, 4 be smoke inlet section, 5 be level-one intercept section, 6 be second level intercept section, 7 be exhanst gas outlet section, 8 be level-one intercept hook, 9
It is that second level intercepts hook for drop guide groove, 10.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Referring to Figure 1 and Figure 2, it includes along flue gas stream that full working scope adaptability described in the utility model, which becomes flue gas flow rate demister,
The low flue gas flow rate mist eliminating zone 1 and high flue gas flow rate mist eliminating zone 2 that logical direction is set gradually, wherein in low flue gas flow rate mist eliminating zone 1
1-3 grades of demisters are provided with, 1-2 grades of demisters are provided in high flue gas flow rate mist eliminating zone 2；High flue gas flow rate mist eliminating zone 2 is last
Multi-guide interception type demister blade 3 is arranged in level-one；The multi-guide interception type demister blade 3, between blade
For exhaust gases passes by smoke inlet section 4, level-one intercepts section 5, and second level intercepts section 6, and exhanst gas outlet section 7 forms；The level-one intercepts section 5
Arrange that level-one intercepts hook 8 and several drop guide grooves 9；The second level, which intercepts section 6, has several second levels to intercept hook 10；The interception hook
Length be gradually reduced along the direction of flow of flue gas.
The flow velocity of flue gas is 3.5~5.5m/s in low flue gas flow rate mist eliminating zone 1；Flue gas in high flue gas flow rate mist eliminating zone 2
Flow velocity is 5.5~7.5m/s.
The specific work process of the utility model are as follows:
Flue gas level is introduced into level-one and intercepted in section 5 by smoke inlet section 4；The inner wall that level-one intercepts section 5 is provided with level-one and blocks
Cut hook 8 and drop guide groove 9, wherein level-one intercepts hook 8 and intercepts most of drop, and drop guide groove 9 makes the liquid being captured
Drop can be discharged along drop guide groove 9, and without carrying out demister by air-flow, second level intercepts in section 6 and is provided with multiple block
Hook 10 is cut, and size is sequentially reduced along the direction of flow of flue gas, is captured to further intercept and intercept hook 8 by level-one
And it is detached from the drop of drop guide groove, then the drop of capture is exported, so that these drops be avoided to carry out demisting by air-flow
Device.So that multi-guide interception type demister blade can in higher flue gas flow rate efficient demisting.
The utility model is removed in flue gas using the feature that flue gas flow rate is lower, resistance is small in low flue gas flow rate mist eliminating zone 1
The big partial size drop of the high concentration of 90% or more quality accounting since air velocity is lower, while reducing the wind of demister blocking
Danger；Flue gas is after too low flue gas flow rate mist eliminating zone 1, using high flue gas flow rate mist eliminating zone 2 to the efficient of low concentration small particle size droplets
Rate removal behavior removes remaining small particle size droplets in flue gas.
Claims (3)
1. a kind of full working scope adaptability becomes flue gas flow rate demister, which is characterized in that including being set gradually along flue gas circulating direction
Low flue gas flow rate mist eliminating zone (1) and high flue gas flow rate mist eliminating zone (2), wherein is provided with 1- in low flue gas flow rate mist eliminating zone (1)
3 grades of demisters, high flue gas flow rate mist eliminating zone (2) is interior to be provided with 1-2 grades of demisters；
Afterbody demister setting multi-guide interception type demister blade (3) in high flue gas flow rate mist eliminating zone (2), adjacent two
Exhaust gases passes are formed between a multi-guide interception type demister blade (3), the exhaust gases passes are by being sequentially connected logical flue gas
Entrance (4), level-one intercept section (5), second level intercepts section (6) and exhanst gas outlet section (7) composition；
Level-one intercepts arrangement level-one in section (5) and intercepts hook (8) and several drop guide grooves (9)；Second level intercepts the setting in section (6)
There are several second levels to intercept hook (10), wherein the length that each second level intercepts hook (10) is gradually reduced along the direction of flow of flue gas.
2. full working scope adaptability according to claim 1 becomes flue gas flow rate demister, which is characterized in that low flue gas flow rate removes
The flow velocity of fog-zone (1) interior flue gas is 3.5~5.5m/s.
3. full working scope adaptability according to claim 1 becomes flue gas flow rate demister, which is characterized in that high flue gas flow rate removes
The flow velocity of fog-zone (2) interior flue gas is 5.5~7.5m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766063.1U CN208406346U (en) | 2018-05-22 | 2018-05-22 | A kind of full working scope adaptability change flue gas flow rate demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766063.1U CN208406346U (en) | 2018-05-22 | 2018-05-22 | A kind of full working scope adaptability change flue gas flow rate demister |
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| Publication Number | Publication Date |
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| CN208406346U true CN208406346U (en) | 2019-01-22 |
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| CN201820766063.1U Active CN208406346U (en) | 2018-05-22 | 2018-05-22 | A kind of full working scope adaptability change flue gas flow rate demister |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114768389A (en) * | 2022-04-12 | 2022-07-22 | 江苏华普泰克石油装备有限公司 | Demister for oil exploitation three-phase separator |
-
2018
- 2018-05-22 CN CN201820766063.1U patent/CN208406346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114768389A (en) * | 2022-04-12 | 2022-07-22 | 江苏华普泰克石油装备有限公司 | Demister for oil exploitation three-phase separator |
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