CN202289712U - Novel broken line type three-channel demister - Google Patents
Novel broken line type three-channel demister Download PDFInfo
- Publication number
- CN202289712U CN202289712U CN2011203591823U CN201120359182U CN202289712U CN 202289712 U CN202289712 U CN 202289712U CN 2011203591823 U CN2011203591823 U CN 2011203591823U CN 201120359182 U CN201120359182 U CN 201120359182U CN 202289712 U CN202289712 U CN 202289712U
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- China
- Prior art keywords
- demister
- broken line
- line type
- channel
- novel broken
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- Expired - Fee Related
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- Separating Particles In Gases By Inertia (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a demister for a wet-method flue gas desulfurization system, in particular to a novel broken line type three-channel demister, which comprises a demister body formed by splicing a plurality of demister blades, wherein the demister blades are adjacent two by two and are fixedly connected by clamping apparatus; and an airflow channel is formed between every two demister blades. The demister is characterized in that inclined baffles are arranged at a first corner and a third corner of each airflow channel. The utility model has the advantages that the broken line type three-channel demister has a simple structure and a good demisting effect and is easy to implement and convenient to install on site.
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 triple channel demister.
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 FGD 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 triple channel demister device, 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 is adopted: novel broken line type triple channel demister; 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 being provided with and being respectively arranged with sloping baffle with the 3rd corner at first 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
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; Constitute gas channel between per two demister blades, as shown in Figure 2, the utility model is provided with and is respectively arranged with sloping baffle 7 with the 3rd corner at first of gas channel; The sloping baffle material therefor is identical with the demister blade; Be RPP, the thickness of sloping baffle is identical with the demister vane thickness, generally gets
; 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, and sloping baffle length too weak point can not play the effect that captures drop; Length is oversize can to increase the inhibition to air-flow; Cause SR to increase, can establish the length when the adjustment baffle plate according to actual conditions, the angle of inclination of sloping baffle is generally got with vertical direction and is become 15 ~ 30 °; Angle almost overlaps with blade too greatly can not play the effect that captures drop; The too little inhibition to air-flow of angle is crossed conference and is caused system pressure drop to increase, and resistance increases, thereby makes the energy consumption of system become big.
Method through numerical simulation and test can verify through the 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 baffle plate can be that the demister pressure drop increases to some extent to the inhibition of air-flow, baffle plate 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.
Claims (4)
1. novel broken line type triple channel demister; 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 being provided with and being respectively arranged with sloping baffle (7) with the 3rd corner at first of gas channel.
2. by the described novel broken line type triple channel demister 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 triple channel demisters, 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 triple channel demisters, it is characterized in that the thickness of described sloping baffle is identical with vane thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203591823U CN202289712U (en) | 2011-09-23 | 2011-09-23 | Novel broken line type three-channel demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203591823U CN202289712U (en) | 2011-09-23 | 2011-09-23 | Novel broken line type three-channel demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289712U true CN202289712U (en) | 2012-07-04 |
Family
ID=46358700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203591823U Expired - Fee Related CN202289712U (en) | 2011-09-23 | 2011-09-23 | Novel broken line type three-channel demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289712U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492169A (en) * | 2014-12-09 | 2015-04-08 | 武汉科技大学 | Cocurrent type coiling-free cycloid demisting device |
| CN114570116A (en) * | 2022-03-03 | 2022-06-03 | 中国石油化工股份有限公司 | High-efficient baffling board and high-efficient baffling board defroster |
-
2011
- 2011-09-23 CN CN2011203591823U patent/CN202289712U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492169A (en) * | 2014-12-09 | 2015-04-08 | 武汉科技大学 | Cocurrent type coiling-free cycloid demisting device |
| CN104492169B (en) * | 2014-12-09 | 2016-03-16 | 武汉科技大学 | A kind of downflow type is without winding spin line demister |
| CN114570116A (en) * | 2022-03-03 | 2022-06-03 | 中国石油化工股份有限公司 | High-efficient baffling board and high-efficient baffling board defroster |
| CN114570116B (en) * | 2022-03-03 | 2024-04-26 | 中国石油化工股份有限公司 | Efficient baffle plate and efficient baffle plate demister |
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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: 20120704 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |