CN207253926U - A kind of chimney rain collection device - Google Patents
A kind of chimney rain collection device Download PDFInfo
- Publication number
- CN207253926U CN207253926U CN201720908624.2U CN201720908624U CN207253926U CN 207253926 U CN207253926 U CN 207253926U CN 201720908624 U CN201720908624 U CN 201720908624U CN 207253926 U CN207253926 U CN 207253926U
- Authority
- CN
- China
- Prior art keywords
- chimney
- cyclone
- collection device
- annular
- absorption tower
- 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.)
- Active
Links
Landscapes
- Cyclones (AREA)
Abstract
It the utility model is related to a kind of chimney rain collection device, including cyclone, annular collection trough, on absorption tower, chimney segment near top installs a cyclone, and lower wall cylinder outer ring to the absorption tower chimney wall installation annular collection trough of cyclone, annular collection trough set a discharge outlet and are connected with exterior fluid collection tube road system.Wet desulfurization system after the utility model is installed, flow velocity of the wet flue gas through chimney segment about 15m/s, in this velocity flows through cyclone, guide functions through swirl vane form spiral-shaped air-flow, collided along chimney wall tangential direction and siding, drop is collected by siding, hereafter after the upward speed of drop can slow down gradually annular collection trough is flowed into along siding, the drop of speed also can be blocked and flowed back by ring baffle in chimney top, solve the important environmental pollution hidden danger of wet desulphurization facility operation.Device provided by the utility model has the advantages that drop collection efficiency is high, simple in structure, system resistance is small, does not increase operating cost.
Description
Technical field
It the utility model is related to the collection device of " chimney rain " that chimney is discharged in device in a kind of wet desulphurization.
Background technology
At present, in the flue gas desulfurization device (FGD) of domestic thermal power plant coal unit installation, it is most of use it is wet
Method sulfur removal technology.The wet desulfurizing process of early stage is mounted with flue gas heat-exchange unit (GGH) to lift the rising height of flue gas so that
More than 80 DEG C are heated to from the neat stress (50 DEG C or so) of absorption tower discharge.After 2006, since helicoid GGH is being run
During dust stratification, fouling it is serious, have impact on the normal operation of whole desulfurizer, then, the desulfurizer then built is almost
GGH is all eliminated, makes 50 DEG C or so of wet saturated flue gas directly from smoke stack emission, namely what is often called " Wet chimney ".Wet saturated flue gas
Ground spreads and condenses into the small rain droplets of the slurries containing solid crystal around from chimney top to tower, is exactly " chimney mentioned herein
Rain " phenomenon.Slurries in desulfurizer neat stress are mainly derived from the fine drop after the spraying layer nozzle atomization of absorption tower, slurries
Fogdrop diameter is most of between 1500-2000 μm after nozzle atomization, and a small amount of diameter can be produced after collision at 15 μm or so
Droplet, droplet is after demister, and droplet removal rate of the diameter not less than 22 μm is generally 99.99%, 15-22 μm of diameter
Drop removal rate be 50%, less than 15 μm of droplet can not intercept, therefore it is inevitable to have a certain amount of slurries in neat stress.
In the thermal power plant using wet desulphurization, much all there is " chimney rain " phenomenon in Wet chimney operation, be usually that unit exists
During large load operation, flue gas carries slurries phenomenon and is particularly acute.
" chimney rain " contains a certain amount of SO in acidity2、SO3And slurries etc., can to the equipment in diffusion zone, facility and
Building causes certain infringement, and the production, life to surrounding resident have an impact.Continuously " chimney rain " will be to nearby residents
Life and power plant's production produce harmful effect." chimney rain " dried mud point, if falling in power plant's nearby residents roof and clothing
On, cleaning is very difficult；If falling on power plant's automobile, architectural glazings, device outer surface, while causing environmental pollution,
Power plant safety can be influenced to carry out production strictly in line with rules and regulations；Continuously " chimney rain " will produce bad shadow to the growth of power plant periphery plant and crops
Ring, " chimney rain " is covered in vegetation and crops blade surface, not only breaks up landscape after falling, and hinders Plant Light cooperation
With influencing the normal growths of vegetation and crops；At present, when there is serious " chimney rain " phenomenon in domestic multiple power plant, more by
The strong dissatisfaction and protest of neighbouring resident, damages the favorable image of power plant.Due to sensitiveness of the environmental problem in the public, " cigarette
Chimney rain " problem has become the important environmental pollution hidden danger of wet desulphurization facility operation.
The content of the invention
The purpose of this utility model is in order to overcome the problems of the above-mentioned prior art, there is provided a kind of Novel chimney rain is collected
Device.Device provided by the utility model have drop collection efficiency is high, simple in structure, system resistance is small, do not increase operation into
This advantages that.
The technical solution of the utility model is：
A kind of chimney rain collection device, including cyclone, annular collection trough, it is characterised in that：On absorption tower chimney segment top
A cyclone is nearby installed in portion, and lower wall cylinder outer ring to the absorption tower chimney wall installation annular collection trough of cyclone, annular are received
Collection groove sets a discharge outlet and is connected with exterior fluid collection tube road system.
The utility model further includes ring baffle, and ring baffle is installed on absorption tower chimney top outlet inward flange.
The cyclone is made of some paddle shape blades, top center disk cylinder, lower wall cylinder, top center disk cylinder
Supported with lower wall cylinder and fix each paddle shape blade, and some paddle shape blades are along chimney circumference, cyclone monnolithic case
Taper fan structure.
The paddle shape width of blade direction of the cyclone tilts 40 °~50 ° arrangements, length of blade direction in the direction of the clock
25 °~35 ° of angle with horizontal plane arranges to top center disk cylinder, and see cannot be seamed for vertical direction between adjacent paddle shape blade
Gap.
The top center disk cylinder of the cyclone is equipped with manhole and supporting blind flange.
The groove body circumferential direction inside of the annular collection trough is disposed with some stiffener plates, stiffener plate quantity and paddle shape
Blade is identical, and the positioning of stiffener plate arranges that the bottom plate of stiffener plate and annular collection trough leaves one with paddle shape blade pair
Determining deviation, flows, whole cyclone is supported by this annular collection trough easy to the slurries of collection.
Wet desulfurization system after the utility model, the wet flue gas about 15m/s of the flow velocity through chimney segment, under this speed are installed
Cyclone is flowed through, the guide functions through swirl vane form spiral-shaped air-flow, are collided along chimney wall tangential direction and siding,
Drop is collected by siding, and annular collection trough, speed are flowed into along siding after hereafter the upward speed of drop can slow down gradually
Drop also can be blocked and be flowed back by ring baffle in chimney top, the important environmental pollution for solving wet desulphurization facility operation is hidden
Suffer from.Device provided by the utility model is with drop collection efficiency is high, simple in structure, system resistance is small, does not increase operating cost
The advantages that.
Brief description of the drawings
Fig. 1 is the arrangement schematic diagram of the utility model.
Fig. 2 is the hydrocyclone structure schematic diagram of the utility model.
Fig. 3 is that the cyclone of the utility model overlooks intention.
Embodiment
Structure Figure is further described the utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model mainly includes cyclone 4, ring baffle 7, annular collection trough 8, its
It is characterized in that：On absorption tower, chimney segment near top installs a cyclone 4, and the lower wall cylinder 4-3 outer rings of cyclone 4 are extremely inhaled
Receive tower chimney wall installation annular collection trough 8, annular collection trough 8 set a discharge outlet 10 and with exterior fluid collection tube road system
System 1 is connected；Ring baffle 7 is installed on absorption tower chimney top outlet inward flange；The cyclone 4 is by some paddle shape blades
4-2, top center disk cylinder 4-1, lower wall cylinder 4-3 compositions, top center disk cylinder 4-1 and lower wall cylinder 4-3 are supported
And fixed each paddle shape blade 4-2, and some paddle shape blade 4-2, along chimney circumference, cyclone monnolithic case is taper wind
Fan structure；Flue gas forms swirling eddy by the water conservancy diversion of paddle shape blade, and the paddle shape blade 4-2 widths of the cyclone are pressed
Tilt 45 ° of arrangements clockwise, 32 ° of paddle shape blade 4-2 length directions angle with horizontal plane is to top center disk cylinder 4-1
Arrangement, and vertical direction is seen and cannot be had the gap between adjacent paddle shape blade 4-2, and must have certain overlapping region；Cyclone 4
Top center disk cylinder 4-1 be equipped with the manhole and supporting blind flange 11 of a diameter of 800mm, the upper and lower inspection of for constructing when
Repair passage.The 8 groove body circumferential direction inside of annular collection trough that lower wall cylinder 4-3 outer rings to the absorption tower chimney wall of cyclone 4 is installed
Some stiffener plates 9 are disposed with, 9 quantity of stiffener plate is identical with paddle shape blade 4-2, and the positioning of stiffener plate 9 and paddle shape leaf
Piece 4-2 centerings arrange, the bottom plate of stiffener plate 9 and annular collection trough 8 stay it is at regular intervals, it is whole easy to the slurries flowing of collection
A cyclone is supported by this annular collection trough.Allow pipe support to move towards according to trench and absorption tower body, collected in annular
Groove, which corresponds to orientation, to be opened a discharge outlet 10 and accesses a set of fluid collection tube road system 1, discharges the slurries of collection.Absorption tower chimney top
The ring baffle 7 of portion outlet inward flange installation, predominantly prevents the slurries through the effect of 4 centrifugal force of cyclone from being thrown away along chimney wall,
Improve organic efficiency.It is disposed with the scaffold of spacing 800mm in terms of construction and maintenance to lower stack wall 1m or so in cyclone absolute altitude
Through hole 5, the upward chimney wall 1m of cyclone or so opens the peace of an a diameter of 800mm manholes 2, upward 2m or so arrangement spacing 1000mm
Full band through hole 3, the absorption tower downward 1.5m of chimney top ring baffle or so also arranges the scaffold through hole 5 of spacing 800mm.Former chimney
If without broken solar or lunar halo in design, can be uniformly distributed along the circumference 4 broken wind fins 6 in top small range region, increase absorption tower chimney
Stability.Whole system material is both needed to meet Corrosion Protection, and main material is fiberglass, PP, 316L or two-phase alloys steel etc., spiral shell
The fasteners such as bolt use 316L stainless steels or two-phase alloys steel, and the connection between fiberglass is connected using fiberglass special bonding material
Connect.
The operating mechanism of wet desulfurization system is the wet flue gas about 15m/s of the flow velocity through chimney segment, in this velocity flows through rotation
Device is flowed, the guide functions of the paddle shape blade 4-2 through cyclone 4 form spiral-shaped air-flow, along chimney wall tangential direction and wall
Plate collides, and drop is collected by siding, and annular collection trough 8 is flowed into along siding after hereafter the upward speed of drop can slow down gradually,
The drop of speed also can be blocked and flowed back by ring baffle 7 in chimney top.
Claims (6)
1. a kind of chimney rain collection device, including cyclone, annular collection trough, it is characterised in that：At the top of the chimney segment of absorption tower
One cyclone of installation nearby, and lower wall cylinder outer ring to the absorption tower chimney wall installation annular collection trough of cyclone, annular are collected
Groove sets a discharge outlet and is connected with exterior fluid collection tube road system.
2. chimney rain collection device according to claim 1, it is characterised in that：Further include ring baffle, ring baffle peace
Inward flange is exported mounted in absorption tower chimney top.
3. chimney rain collection device according to claim 1 or 2, it is characterised in that：The cyclone is by some paddle shapes
Blade, top center disk cylinder, lower wall cylinder composition, top center disk cylinder support with lower wall cylinder and fix each paddle shape leaf
Piece, and some paddle shape blades are along chimney circumference.
4. chimney rain collection device according to claim 3, it is characterised in that：The paddle shape width of blade side of the cyclone
To 40 °~50 ° arrangements are tilted in the direction of the clock, 25 °~35 ° of length of blade direction angle with horizontal plane is justified along top center disk
Cylinder arrangement, and vertical direction is seen and cannot be had the gap between adjacent paddle shape blade.
5. chimney rain collection device according to claim 1 or 2, it is characterised in that：The top center disk of the cyclone
Cylinder is equipped with manhole and supporting blind flange.
6. chimney rain collection device according to claim 3, it is characterised in that：Inside the groove body of the annular collection trough
Some stiffener plates are circumferentially disposed with, stiffener plate quantity is identical with paddle shape blade, and the positioning of stiffener plate and paddle shape leaf
The bottom plate of piece centering arrangement, stiffener plate and annular collection trough stays at regular intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720908624.2U CN207253926U (en) | 2017-07-25 | 2017-07-25 | A kind of chimney rain collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720908624.2U CN207253926U (en) | 2017-07-25 | 2017-07-25 | A kind of chimney rain collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207253926U true CN207253926U (en) | 2018-04-20 |
Family
ID=61927462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720908624.2U Active CN207253926U (en) | 2017-07-25 | 2017-07-25 | A kind of chimney rain collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207253926U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854358A (en) * | 2018-07-10 | 2018-11-23 | 马鞍山市如松冶金科技有限责任公司 | One kind spraying Integral dust catcher by spraying |
| CN111473351A (en) * | 2020-04-24 | 2020-07-31 | 北京博纳菲德科技有限公司 | Environment-friendly and energy-saving house chimney and using method |
| CN114775920A (en) * | 2022-03-16 | 2022-07-22 | 中建二局第一建筑工程有限公司 | Roof |
-
2017
- 2017-07-25 CN CN201720908624.2U patent/CN207253926U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854358A (en) * | 2018-07-10 | 2018-11-23 | 马鞍山市如松冶金科技有限责任公司 | One kind spraying Integral dust catcher by spraying |
| CN111473351A (en) * | 2020-04-24 | 2020-07-31 | 北京博纳菲德科技有限公司 | Environment-friendly and energy-saving house chimney and using method |
| CN114775920A (en) * | 2022-03-16 | 2022-07-22 | 中建二局第一建筑工程有限公司 | Roof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104984597B (en) | A kind of air swirl parallel combination demister and application | |
| CN207253926U (en) | A kind of chimney rain collection device | |
| CN105169818B (en) | Double-vane air-swirl parallel-combination demister and application thereof | |
| CN105148623B (en) | Rotary blade type dynamic steam-water separator with controllable rotational speeds | |
| JP3269332B2 (en) | Spray tower | |
| CN207755876U (en) | Double cyclone dedusting demisters | |
| CN204911024U (en) | Pneumatic whirl parallel combination defogging device | |
| CN205599335U (en) | Tubular pole defogging dust collector | |
| CN204684801U (en) | A kind of spiral board dedusting demister | |
| CN205269245U (en) | Desulfurizing tower exhaust pass defogging device with guide plate | |
| CN204601836U (en) | For the cyclone that wet desulfurization system flue gas drop removes | |
| CA1049924A (en) | Cooling tower | |
| CN102444309A (en) | Non-corrosive dust-collecting and energy-saving chimney | |
| CN103953937B (en) | A kind of Wet chimney inlet guide vance device | |
| CN106111026B (en) | A kind of rotating stream tray scrubber producing thiocarbamide | |
| CN204973336U (en) | Pneumatic whirl parallel combination defogging device of double leaf | |
| CN210699167U (en) | Multistage cyclone dust and mist eliminator | |
| CN100460759C (en) | Wind-proof, rain-proof and environmental protection cowl | |
| CN206739339U (en) | Smoke discharging device | |
| CN209596735U (en) | Tubular type Environmental protection water circulation cyclone dust | |
| CN206027657U (en) | Whirl board tower that production thiocarbamide was used | |
| CN102563678A (en) | Device used for preventing flue gas at outlet of chimney from carrying droplets after wet desulphurization | |
| CN206755208U (en) | A kind of condensation liquor collecting device for fiber glass reinforced plastic chimney inner cylinder | |
| CN202511303U (en) | Device for preventing wet desulphurized flue gas at chimney exit from carrying liquid droplets | |
| CN205995156U (en) | A kind of wet desulphurization spiral-flow type demister |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |