CN202237590U - Novel folding-line type two-passage defogger - Google Patents
Novel folding-line type two-passage defogger Download PDFInfo
- Publication number
- CN202237590U CN202237590U CN201120359158XU CN201120359158U CN202237590U CN 202237590 U CN202237590 U CN 202237590U CN 201120359158X U CN201120359158X U CN 201120359158XU CN 201120359158 U CN201120359158 U CN 201120359158U CN 202237590 U CN202237590 U CN 202237590U
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- China
- Prior art keywords
- demister
- defogger
- passage
- line type
- blades
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a defogger used in a wet-method flue gas desulphurization system, in particular to a novel folding-line type two-passage defogger. The defogger comprises a defogger body formed by splicing a plurality of defogger blades, wherein every two adjacent defogger blades are fixedly connected through a clamping tool; and an air flow passage is formed between every two defogger blades. The defogger is characterized in that an inclined baffle plate is arranged at a first corner of the air flow passage. The defogger has the main advantages of simple structure, easiness in realization, convenience in field mounting and good defogging effect.
Description
Technical field
The utility model relates to a kind of demister that uses at wet method fume desulfurizing system, concrete relates to a kind of novel broken line type two passage demisters.
Background technology
In the wet desulfurizing process, the flue gas after handle on the absorption tower has been carried a large amount of slurry drops secretly, and particularly along with the improving constantly of current adsorption tower smoke flow velocity, flue gas carries the drop amount will be aggravated.If do not remove these drops, these slurry drops can be deposited on downstream, absorption tower equipment surface, form the gypsum dirt, and the corrosion of acceleration equipment also can influence heat exchange to the flue gas reheater.If adopt wet row's technology, then can cause chimney " rainfall " (discharge liquid, solid or slurry), pollute power plant's surrounding environment.Demister is the key equipment in fire coal or the oil burning boiler flue gas desulphurization system, and its performance directly has influence on wet method fume desulfurizing system WFGD reliability service continuously.Its operation principle
[6-7]Be when the gas that contains mist is flowed through demister with certain speed, because the inertial impaction effect of gas, mist and deflection plate collide and are attached on the deflection plate surface.The gravitational settling of the diffusion of mist, mist makes the bigger drop of mist formation and moves forward to the deflection plate turning with air-flow on the deflection plate surface; Owing to turn to centrifugal force and make drop increasing with the surface tension of rubbing action, suction-operated and the liquid of deflection plate; Up to the drop that gathers arrive greatly climbing power that the gravity that himself produces surpasses gas and surface tension of liquid with joint efforts the time, drop is just separated from the deflection plate surface to get off.The structure that is folded to of demister deflection plate has increased the chance that mist is captured more, and the mist that is not removed is captured through identical effect at next turning, effect so repeatedly, thus remove drop entrained in the gas.
Two important indicators weighing the demister performance are that demister is imported and exported pressure drop and demist efficient.Pressure drop shows that more greatly the power that system need replenish is many more, and energy consumption is just high more, and general two-stage demister pressure drop should be controlled in 120 ~ 200Pa.Demist efficient is low more to show that the flue gas water content is higher; Drop can be deposited on downstream, absorption tower equipment surface; The corrosion of acceleration equipment; Cause a series of problems, dry state lower smoke outlet end water content should be controlled in
.
Problems such as traditional demister all more or less exists demist efficient low, and pressure drop is bigger.
Summary of the invention
The purpose of the utility model is to provide a kind of novel broken line type two passage demister devices, improves demist efficient to a certain extent, reduces pressure drop, to guarantee the normal operation of wet method fume desulfurizing system, accomplishes energy-conserving and environment-protective.
The utility model solves the problems of the technologies described above the technical scheme that adopts: novel broken line type two passage demister devices; Include the demister body that is spliced by a plurality of demister blades; Described demister blade is adjacent in twos to be fixedly connected by jig; Constitute gas channel between per two demister blades, it is characterized in that sloping baffle being set in first corner of gas channel.
Press such scheme, the length of described sloping baffle be the demister blade blade pitgh 1/2/ ~ 1/3.
Press such scheme, the angle of described sloping baffle and vertical direction is 15 ~ 30 ° for the α value.
Press such scheme, the thickness of described sloping baffle is identical with the demister vane thickness.
The utility model is owing to adopted such scheme; In gas passage, be provided with sloping baffle; Sloping baffle has inhibition also to increase the chance that drop is captured simultaneously to air-flow; Drop is captured at the baffle plate place more easily, because sloping baffle exists certain angle of inclination to make the angle of baffle plane and airflow direction diminish, has also reduced pressure drop to a certain extent on the other hand.
The utility model major advantage is: simple in structure, be easy to realize, and on-the-spot easy for installation, demist is effective.
Description of drawings
Fig. 1 is a wet method fume desulfurizing system demister overall schematic;
Fig. 2 is the utility model blade construction sketch map;
1. water legs among the figure, 2. demister framework, 3. demister body, 4. demister blade, 5. nozzle, 6. cleaning device, 7. sloping baffle.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Among Fig. 1, demister is made up of demister body 3, demister framework 2, demister blade 4, water leg 1, cleaning device 6, nozzle 5, and its basic structure is consistent with prior art; And the demister body is to cross jig by a plurality of demister blade pass to piece together in twos and form, and constitutes gas channel between per two demister blades, and is as shown in Figure 2; The utility model is provided with sloping baffle 7 in first corner of gas channel, and the sloping baffle material therefor is identical with the demister blade, i.e. RPP; The thickness of sloping baffle is identical with the demister vane thickness; Generally get
, the length of sloping baffle be generally the demister blade blade pitgh 1/2/ ~ 1/3, the length of the baffle plate that present embodiment is used is generally got 5 ~ 15mm; Can be according to the suitably adjustment of size of blade pitgh; Sloping baffle length too weak point can not play the effect that captures drop, and length is oversize can to increase the inhibition to air-flow, causes SR to increase; Can establish length according to actual conditions when the adjustment baffle plate; The angle of inclination of sloping baffle is generally got with vertical direction and is become 15 ~ 30 °, and angle almost overlaps with blade too greatly can not play the effect that captures drop, and the too little inhibition to air-flow of angle is crossed conference and caused system pressure drop to increase; Resistance increases, thereby makes the energy consumption of system become big.
Method through numerical simulation and test can verify through the demister blade after improving and optimizating drop is had good capture effect.When having the air-flow process demister passage of drop, follow air-flow together because the inhibition to air-flow of baffle plate makes the bigger drop of inertia can't walk around baffle plate, thereby be captured.Though sloping baffle can be that the demister pressure drop increases to some extent to the inhibition of air-flow, sloping baffle exists an angle of inclination to make the increase of pressure drop descend to some extent, has slowed down the degree of the increase of pressure drop to a certain extent.Pressure drop diminishes.
Claims (4)
1. novel broken line type two passage demister devices; Include the demister body that is spliced by a plurality of demister blades; Described demister blade is adjacent in twos to be fixedly connected by jig; Constitute gas channel between per two demister blades, it is characterized in that sloping baffle (7) being set in first corner of gas channel.
2. by the described novel broken line type two passage demister devices of claim 1, the length that it is characterized in that described sloping baffle be the demister blade blade pitgh 1/2/ ~ 1/3.
3. by claim 1 or 2 described novel broken line type two passage demister devices, it is characterized in that the angle of described sloping baffle and vertical direction is 15 ~ 30 ° for the α value.
4. by claim 1 or 2 described novel broken line type two passage demister devices, it is characterized in that the thickness of described sloping baffle is identical with the demister vane thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120359158XU CN202237590U (en) | 2011-09-23 | 2011-09-23 | Novel folding-line type two-passage defogger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120359158XU CN202237590U (en) | 2011-09-23 | 2011-09-23 | Novel folding-line type two-passage defogger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202237590U true CN202237590U (en) | 2012-05-30 |
Family
ID=46098895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120359158XU Expired - Fee Related CN202237590U (en) | 2011-09-23 | 2011-09-23 | Novel folding-line type two-passage defogger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202237590U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623987A (en) * | 2015-02-03 | 2015-05-20 | 东南大学 | Defogger for improving defogging efficiency of small-particle-size fog drops |
| CN104645724A (en) * | 2015-01-29 | 2015-05-27 | 东南大学 | Plate-type demister for improving demisting efficiency of small-particle-size droplets |
-
2011
- 2011-09-23 CN CN201120359158XU patent/CN202237590U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645724A (en) * | 2015-01-29 | 2015-05-27 | 东南大学 | Plate-type demister for improving demisting efficiency of small-particle-size droplets |
| CN104645724B (en) * | 2015-01-29 | 2016-01-27 | 东南大学 | A kind of board-like demister for improving small particle diameter droplet demisting efficiency |
| CN104623987A (en) * | 2015-02-03 | 2015-05-20 | 东南大学 | Defogger for improving defogging efficiency of small-particle-size fog drops |
| CN104623987B (en) * | 2015-02-03 | 2016-08-24 | 东南大学 | A kind of demister for improving small particle droplet demisting efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |